Home / 1,964.57-2,711.28-1,125.39

Finding the Fourth Proportional to 1,964.57, 2,711.28 and 1,125.39

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Solution

The fourth proportional to 1,964.57, 2,711.28 and 1,125.39 is: 1,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.57 : 2,711.28 = 1,125.39 : x
  2. Step 2: Convert to fraction form
    1,964.57/2,711.28 = 1,125.39/x
  3. Step 3: Cross multiply
    1,964.57x = 2,711.28 × 1,125.39
  4. Step 4: Simplify right side
    1,964.57x = 3,051,247.40
  5. Step 5: Solve for x
    x = 3,051,247.40/1,964.57
  6. Step 6: Final answer
    x = 1,553.14

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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.