Home / 5,621.13-8,431.72-2,289.44

Finding the Fourth Proportional to 5,621.13, 8,431.72 and 2,289.44

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Solution

The fourth proportional to 5,621.13, 8,431.72 and 2,289.44 is: 3,434.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.13 : 8,431.72 = 2,289.44 : x
  2. Step 2: Convert to fraction form
    5,621.13/8,431.72 = 2,289.44/x
  3. Step 3: Cross multiply
    5,621.13x = 8,431.72 × 2,289.44
  4. Step 4: Simplify right side
    5,621.13x = 19,303,917.04
  5. Step 5: Solve for x
    x = 19,303,917.04/5,621.13
  6. Step 6: Final answer
    x = 3,434.17

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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.