Home / 4,320.38-6,480.56-1,547.21

Finding the Fourth Proportional to 4,320.38, 6,480.56 and 1,547.21

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Solution

The fourth proportional to 4,320.38, 6,480.56 and 1,547.21 is: 2,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.38 : 6,480.56 = 1,547.21 : x
  2. Step 2: Convert to fraction form
    4,320.38/6,480.56 = 1,547.21/x
  3. Step 3: Cross multiply
    4,320.38x = 6,480.56 × 1,547.21
  4. Step 4: Simplify right side
    4,320.38x = 10,026,747.10
  5. Step 5: Solve for x
    x = 10,026,747.10/4,320.38
  6. Step 6: Final answer
    x = 2,320.80

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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.