Home / 1,140.11-1,569.27-951.48

Finding the Fourth Proportional to 1,140.11, 1,569.27 and 951.48

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Solution

The fourth proportional to 1,140.11, 1,569.27 and 951.48 is: 1,309.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.11 : 1,569.27 = 951.48 : x
  2. Step 2: Convert to fraction form
    1,140.11/1,569.27 = 951.48/x
  3. Step 3: Cross multiply
    1,140.11x = 1,569.27 × 951.48
  4. Step 4: Simplify right side
    1,140.11x = 1,493,129.02
  5. Step 5: Solve for x
    x = 1,493,129.02/1,140.11
  6. Step 6: Final answer
    x = 1,309.64

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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.