Home / 1,731.28-2,602.39-1,490.71

Finding the Fourth Proportional to 1,731.28, 2,602.39 and 1,490.71

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Solution

The fourth proportional to 1,731.28, 2,602.39 and 1,490.71 is: 2,240.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731.28 : 2,602.39 = 1,490.71 : x
  2. Step 2: Convert to fraction form
    1,731.28/2,602.39 = 1,490.71/x
  3. Step 3: Cross multiply
    1,731.28x = 2,602.39 × 1,490.71
  4. Step 4: Simplify right side
    1,731.28x = 3,879,408.80
  5. Step 5: Solve for x
    x = 3,879,408.80/1,731.28
  6. Step 6: Final answer
    x = 2,240.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.