Home / 6,319.52-8,721.43-3,487.15

Finding the Fourth Proportional to 6,319.52, 8,721.43 and 3,487.15

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Solution

The fourth proportional to 6,319.52, 8,721.43 and 3,487.15 is: 4,812.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,319.52 : 8,721.43 = 3,487.15 : x
  2. Step 2: Convert to fraction form
    6,319.52/8,721.43 = 3,487.15/x
  3. Step 3: Cross multiply
    6,319.52x = 8,721.43 × 3,487.15
  4. Step 4: Simplify right side
    6,319.52x = 30,412,904.10
  5. Step 5: Solve for x
    x = 30,412,904.10/6,319.52
  6. Step 6: Final answer
    x = 4,812.54

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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.