Home / 1,711.29-2,362.64-1,240.71

Finding the Fourth Proportional to 1,711.29, 2,362.64 and 1,240.71

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Solution

The fourth proportional to 1,711.29, 2,362.64 and 1,240.71 is: 1,712.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.29 : 2,362.64 = 1,240.71 : x
  2. Step 2: Convert to fraction form
    1,711.29/2,362.64 = 1,240.71/x
  3. Step 3: Cross multiply
    1,711.29x = 2,362.64 × 1,240.71
  4. Step 4: Simplify right side
    1,711.29x = 2,931,351.07
  5. Step 5: Solve for x
    x = 2,931,351.07/1,711.29
  6. Step 6: Final answer
    x = 1,712.95

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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.