Home / 1,417.95-2,124.49-1,126.35

Finding the Fourth Proportional to 1,417.95, 2,124.49 and 1,126.35

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Solution

The fourth proportional to 1,417.95, 2,124.49 and 1,126.35 is: 1,687.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.95 : 2,124.49 = 1,126.35 : x
  2. Step 2: Convert to fraction form
    1,417.95/2,124.49 = 1,126.35/x
  3. Step 3: Cross multiply
    1,417.95x = 2,124.49 × 1,126.35
  4. Step 4: Simplify right side
    1,417.95x = 2,392,919.31
  5. Step 5: Solve for x
    x = 2,392,919.31/1,417.95
  6. Step 6: Final answer
    x = 1,687.59

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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.