Home / 1,627.13-2,245.19-928.41

Finding the Fourth Proportional to 1,627.13, 2,245.19 and 928.41

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Solution

The fourth proportional to 1,627.13, 2,245.19 and 928.41 is: 1,281.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627.13 : 2,245.19 = 928.41 : x
  2. Step 2: Convert to fraction form
    1,627.13/2,245.19 = 928.41/x
  3. Step 3: Cross multiply
    1,627.13x = 2,245.19 × 928.41
  4. Step 4: Simplify right side
    1,627.13x = 2,084,452.21
  5. Step 5: Solve for x
    x = 2,084,452.21/1,627.13
  6. Step 6: Final answer
    x = 1,281.06

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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.