Home / 1,729.28-2,385.96-1,030.16

Finding the Fourth Proportional to 1,729.28, 2,385.96 and 1,030.16

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Solution

The fourth proportional to 1,729.28, 2,385.96 and 1,030.16 is: 1,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.28 : 2,385.96 = 1,030.16 : x
  2. Step 2: Convert to fraction form
    1,729.28/2,385.96 = 1,030.16/x
  3. Step 3: Cross multiply
    1,729.28x = 2,385.96 × 1,030.16
  4. Step 4: Simplify right side
    1,729.28x = 2,457,920.55
  5. Step 5: Solve for x
    x = 2,457,920.55/1,729.28
  6. Step 6: Final answer
    x = 1,421.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.