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Finding the Fourth Proportional to 1,511.24, 2,086.24 and 951.98

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Solution

The fourth proportional to 1,511.24, 2,086.24 and 951.98 is: 1,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.24 : 2,086.24 = 951.98 : x
  2. Step 2: Convert to fraction form
    1,511.24/2,086.24 = 951.98/x
  3. Step 3: Cross multiply
    1,511.24x = 2,086.24 × 951.98
  4. Step 4: Simplify right side
    1,511.24x = 1,986,058.76
  5. Step 5: Solve for x
    x = 1,986,058.76/1,511.24
  6. Step 6: Final answer
    x = 1,314.19

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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.