Home / 3,666.85-5,060.27-1,988.28

Finding the Fourth Proportional to 3,666.85, 5,060.27 and 1,988.28

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Solution

The fourth proportional to 3,666.85, 5,060.27 and 1,988.28 is: 2,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.85 : 5,060.27 = 1,988.28 : x
  2. Step 2: Convert to fraction form
    3,666.85/5,060.27 = 1,988.28/x
  3. Step 3: Cross multiply
    3,666.85x = 5,060.27 × 1,988.28
  4. Step 4: Simplify right side
    3,666.85x = 10,061,238.61
  5. Step 5: Solve for x
    x = 10,061,238.61/3,666.85
  6. Step 6: Final answer
    x = 2,743.84

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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.