Home / 1,938.92-2,677.60-1,657.52

Finding the Fourth Proportional to 1,938.92, 2,677.60 and 1,657.52

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Solution

The fourth proportional to 1,938.92, 2,677.60 and 1,657.52 is: 2,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.92 : 2,677.60 = 1,657.52 : x
  2. Step 2: Convert to fraction form
    1,938.92/2,677.60 = 1,657.52/x
  3. Step 3: Cross multiply
    1,938.92x = 2,677.60 × 1,657.52
  4. Step 4: Simplify right side
    1,938.92x = 4,438,153.88
  5. Step 5: Solve for x
    x = 4,438,153.88/1,938.92
  6. Step 6: Final answer
    x = 2,288.99

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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.