Home / 1,513.90-2,265.36-1,251.46

Finding the Fourth Proportional to 1,513.90, 2,265.36 and 1,251.46

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Solution

The fourth proportional to 1,513.90, 2,265.36 and 1,251.46 is: 1,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.90 : 2,265.36 = 1,251.46 : x
  2. Step 2: Convert to fraction form
    1,513.90/2,265.36 = 1,251.46/x
  3. Step 3: Cross multiply
    1,513.90x = 2,265.36 × 1,251.46
  4. Step 4: Simplify right side
    1,513.90x = 2,835,007.43
  5. Step 5: Solve for x
    x = 2,835,007.43/1,513.90
  6. Step 6: Final answer
    x = 1,872.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.