Home / 1,475.61-2,039.07-1,427.55

Finding the Fourth Proportional to 1,475.61, 2,039.07 and 1,427.55

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Solution

The fourth proportional to 1,475.61, 2,039.07 and 1,427.55 is: 1,972.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.61 : 2,039.07 = 1,427.55 : x
  2. Step 2: Convert to fraction form
    1,475.61/2,039.07 = 1,427.55/x
  3. Step 3: Cross multiply
    1,475.61x = 2,039.07 × 1,427.55
  4. Step 4: Simplify right side
    1,475.61x = 2,910,874.38
  5. Step 5: Solve for x
    x = 2,910,874.38/1,475.61
  6. Step 6: Final answer
    x = 1,972.66

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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.