Home / 3,387.08-4,672.76-2,127.74

Finding the Fourth Proportional to 3,387.08, 4,672.76 and 2,127.74

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Solution

The fourth proportional to 3,387.08, 4,672.76 and 2,127.74 is: 2,935.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.08 : 4,672.76 = 2,127.74 : x
  2. Step 2: Convert to fraction form
    3,387.08/4,672.76 = 2,127.74/x
  3. Step 3: Cross multiply
    3,387.08x = 4,672.76 × 2,127.74
  4. Step 4: Simplify right side
    3,387.08x = 9,942,384.36
  5. Step 5: Solve for x
    x = 9,942,384.36/3,387.08
  6. Step 6: Final answer
    x = 2,935.39

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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.