Home / 2,830.53-4,243.05-1,347.20

Finding the Fourth Proportional to 2,830.53, 4,243.05 and 1,347.20

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Solution

The fourth proportional to 2,830.53, 4,243.05 and 1,347.20 is: 2,019.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.53 : 4,243.05 = 1,347.20 : x
  2. Step 2: Convert to fraction form
    2,830.53/4,243.05 = 1,347.20/x
  3. Step 3: Cross multiply
    2,830.53x = 4,243.05 × 1,347.20
  4. Step 4: Simplify right side
    2,830.53x = 5,716,236.96
  5. Step 5: Solve for x
    x = 5,716,236.96/2,830.53
  6. Step 6: Final answer
    x = 2,019.49

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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.