Home / 1,513.44-2,088.87-1,251

Finding the Fourth Proportional to 1,513.44, 2,088.87 and 1,251

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Solution

The fourth proportional to 1,513.44, 2,088.87 and 1,251 is: 1,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.44 : 2,088.87 = 1,251 : x
  2. Step 2: Convert to fraction form
    1,513.44/2,088.87 = 1,251/x
  3. Step 3: Cross multiply
    1,513.44x = 2,088.87 × 1,251
  4. Step 4: Simplify right side
    1,513.44x = 2,613,176.37
  5. Step 5: Solve for x
    x = 2,613,176.37/1,513.44
  6. Step 6: Final answer
    x = 1,726.65

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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.