Home / 2,289.10-3,434.10-828.22

Finding the Fourth Proportional to 2,289.10, 3,434.10 and 828.22

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Solution

The fourth proportional to 2,289.10, 3,434.10 and 828.22 is: 1,242.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.10 : 3,434.10 = 828.22 : x
  2. Step 2: Convert to fraction form
    2,289.10/3,434.10 = 828.22/x
  3. Step 3: Cross multiply
    2,289.10x = 3,434.10 × 828.22
  4. Step 4: Simplify right side
    2,289.10x = 2,844,190.30
  5. Step 5: Solve for x
    x = 2,844,190.30/2,289.10
  6. Step 6: Final answer
    x = 1,242.49

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,290.10, 3,435.60 and 829.22
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.