Home / 3,903.72-5,387.30-2,225.04

Finding the Fourth Proportional to 3,903.72, 5,387.30 and 2,225.04

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Solution

The fourth proportional to 3,903.72, 5,387.30 and 2,225.04 is: 3,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.72 : 5,387.30 = 2,225.04 : x
  2. Step 2: Convert to fraction form
    3,903.72/5,387.30 = 2,225.04/x
  3. Step 3: Cross multiply
    3,903.72x = 5,387.30 × 2,225.04
  4. Step 4: Simplify right side
    3,903.72x = 11,986,957.99
  5. Step 5: Solve for x
    x = 11,986,957.99/3,903.72
  6. Step 6: Final answer
    x = 3,070.65

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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.