Home / 6,345.14-8,754.08-3,988.58

Finding the Fourth Proportional to 6,345.14, 8,754.08 and 3,988.58

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Solution

The fourth proportional to 6,345.14, 8,754.08 and 3,988.58 is: 5,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.14 : 8,754.08 = 3,988.58 : x
  2. Step 2: Convert to fraction form
    6,345.14/8,754.08 = 3,988.58/x
  3. Step 3: Cross multiply
    6,345.14x = 8,754.08 × 3,988.58
  4. Step 4: Simplify right side
    6,345.14x = 34,916,348.41
  5. Step 5: Solve for x
    x = 34,916,348.41/6,345.14
  6. Step 6: Final answer
    x = 5,502.85

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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.