Home / 1,625.30-2,242.93-926.72

Finding the Fourth Proportional to 1,625.30, 2,242.93 and 926.72

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Solution

The fourth proportional to 1,625.30, 2,242.93 and 926.72 is: 1,278.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.30 : 2,242.93 = 926.72 : x
  2. Step 2: Convert to fraction form
    1,625.30/2,242.93 = 926.72/x
  3. Step 3: Cross multiply
    1,625.30x = 2,242.93 × 926.72
  4. Step 4: Simplify right side
    1,625.30x = 2,078,568.09
  5. Step 5: Solve for x
    x = 2,078,568.09/1,625.30
  6. Step 6: Final answer
    x = 1,278.88

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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.