Home / 1,711.66-2,359.80-1,240.24

Finding the Fourth Proportional to 1,711.66, 2,359.80 and 1,240.24

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Solution

The fourth proportional to 1,711.66, 2,359.80 and 1,240.24 is: 1,709.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.66 : 2,359.80 = 1,240.24 : x
  2. Step 2: Convert to fraction form
    1,711.66/2,359.80 = 1,240.24/x
  3. Step 3: Cross multiply
    1,711.66x = 2,359.80 × 1,240.24
  4. Step 4: Simplify right side
    1,711.66x = 2,926,718.35
  5. Step 5: Solve for x
    x = 2,926,718.35/1,711.66
  6. Step 6: Final answer
    x = 1,709.87

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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.