Home / 4,920.08-6,789.76-2,681.92

Finding the Fourth Proportional to 4,920.08, 6,789.76 and 2,681.92

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Solution

The fourth proportional to 4,920.08, 6,789.76 and 2,681.92 is: 3,701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.08 : 6,789.76 = 2,681.92 : x
  2. Step 2: Convert to fraction form
    4,920.08/6,789.76 = 2,681.92/x
  3. Step 3: Cross multiply
    4,920.08x = 6,789.76 × 2,681.92
  4. Step 4: Simplify right side
    4,920.08x = 18,209,593.14
  5. Step 5: Solve for x
    x = 18,209,593.14/4,920.08
  6. Step 6: Final answer
    x = 3,701.08

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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.