Home / 6,398.20-8,829.28-3,603.16

Finding the Fourth Proportional to 6,398.20, 8,829.28 and 3,603.16

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Solution

The fourth proportional to 6,398.20, 8,829.28 and 3,603.16 is: 4,972.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398.20 : 8,829.28 = 3,603.16 : x
  2. Step 2: Convert to fraction form
    6,398.20/8,829.28 = 3,603.16/x
  3. Step 3: Cross multiply
    6,398.20x = 8,829.28 × 3,603.16
  4. Step 4: Simplify right side
    6,398.20x = 31,813,308.52
  5. Step 5: Solve for x
    x = 31,813,308.52/6,398.20
  6. Step 6: Final answer
    x = 4,972.23

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1.5x scale

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.