Home / 1,627.70-2,246.20-929.06

Finding the Fourth Proportional to 1,627.70, 2,246.20 and 929.06

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Solution

The fourth proportional to 1,627.70, 2,246.20 and 929.06 is: 1,282.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.70 : 2,246.20 = 929.06 : x
  2. Step 2: Convert to fraction form
    1,627.70/2,246.20 = 929.06/x
  3. Step 3: Cross multiply
    1,627.70x = 2,246.20 × 929.06
  4. Step 4: Simplify right side
    1,627.70x = 2,086,854.57
  5. Step 5: Solve for x
    x = 2,086,854.57/1,627.70
  6. Step 6: Final answer
    x = 1,282.09

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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.