Home / 4,877.92-6,732.06-2,990.74

Finding the Fourth Proportional to 4,877.92, 6,732.06 and 2,990.74

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Solution

The fourth proportional to 4,877.92, 6,732.06 and 2,990.74 is: 4,127.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.92 : 6,732.06 = 2,990.74 : x
  2. Step 2: Convert to fraction form
    4,877.92/6,732.06 = 2,990.74/x
  3. Step 3: Cross multiply
    4,877.92x = 6,732.06 × 2,990.74
  4. Step 4: Simplify right side
    4,877.92x = 20,133,841.12
  5. Step 5: Solve for x
    x = 20,133,841.12/4,877.92
  6. Step 6: Final answer
    x = 4,127.55

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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.