Home / 6,320.08-8,721.28-3,487.32

Finding the Fourth Proportional to 6,320.08, 8,721.28 and 3,487.32

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Solution

The fourth proportional to 6,320.08, 8,721.28 and 3,487.32 is: 4,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.08 : 8,721.28 = 3,487.32 : x
  2. Step 2: Convert to fraction form
    6,320.08/8,721.28 = 3,487.32/x
  3. Step 3: Cross multiply
    6,320.08x = 8,721.28 × 3,487.32
  4. Step 4: Simplify right side
    6,320.08x = 30,413,894.17
  5. Step 5: Solve for x
    x = 30,413,894.17/6,320.08
  6. Step 6: Final answer
    x = 4,812.26

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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.