Home / 4,988.55-7,480.38-2,909.08

Finding the Fourth Proportional to 4,988.55, 7,480.38 and 2,909.08

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Solution

The fourth proportional to 4,988.55, 7,480.38 and 2,909.08 is: 4,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.55 : 7,480.38 = 2,909.08 : x
  2. Step 2: Convert to fraction form
    4,988.55/7,480.38 = 2,909.08/x
  3. Step 3: Cross multiply
    4,988.55x = 7,480.38 × 2,909.08
  4. Step 4: Simplify right side
    4,988.55x = 21,761,044.11
  5. Step 5: Solve for x
    x = 21,761,044.11/4,988.55
  6. Step 6: Final answer
    x = 4,362.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.