Home / 1,515.52-2,091.18-926.08

Finding the Fourth Proportional to 1,515.52, 2,091.18 and 926.08

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Solution

The fourth proportional to 1,515.52, 2,091.18 and 926.08 is: 1,277.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515.52 : 2,091.18 = 926.08 : x
  2. Step 2: Convert to fraction form
    1,515.52/2,091.18 = 926.08/x
  3. Step 3: Cross multiply
    1,515.52x = 2,091.18 × 926.08
  4. Step 4: Simplify right side
    1,515.52x = 1,936,599.97
  5. Step 5: Solve for x
    x = 1,936,599.97/1,515.52
  6. Step 6: Final answer
    x = 1,277.85

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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.