Home / 1,660.60-2,292.40-1,262.39

Finding the Fourth Proportional to 1,660.60, 2,292.40 and 1,262.39

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Solution

The fourth proportional to 1,660.60, 2,292.40 and 1,262.39 is: 1,742.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.60 : 2,292.40 = 1,262.39 : x
  2. Step 2: Convert to fraction form
    1,660.60/2,292.40 = 1,262.39/x
  3. Step 3: Cross multiply
    1,660.60x = 2,292.40 × 1,262.39
  4. Step 4: Simplify right side
    1,660.60x = 2,893,892.95
  5. Step 5: Solve for x
    x = 2,893,892.95/1,660.60
  6. Step 6: Final answer
    x = 1,742.68

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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.