Home / 4,920.18-6,789.63-2,681.91

Finding the Fourth Proportional to 4,920.18, 6,789.63 and 2,681.91

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Solution

The fourth proportional to 4,920.18, 6,789.63 and 2,681.91 is: 3,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.18 : 6,789.63 = 2,681.91 : x
  2. Step 2: Convert to fraction form
    4,920.18/6,789.63 = 2,681.91/x
  3. Step 3: Cross multiply
    4,920.18x = 6,789.63 × 2,681.91
  4. Step 4: Simplify right side
    4,920.18x = 18,209,176.59
  5. Step 5: Solve for x
    x = 18,209,176.59/4,920.18
  6. Step 6: Final answer
    x = 3,700.92

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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.