Home / 1,690.28-2,523.61-1,458.92

Finding the Fourth Proportional to 1,690.28, 2,523.61 and 1,458.92

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Solution

The fourth proportional to 1,690.28, 2,523.61 and 1,458.92 is: 2,178.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.28 : 2,523.61 = 1,458.92 : x
  2. Step 2: Convert to fraction form
    1,690.28/2,523.61 = 1,458.92/x
  3. Step 3: Cross multiply
    1,690.28x = 2,523.61 × 1,458.92
  4. Step 4: Simplify right side
    1,690.28x = 3,681,745.10
  5. Step 5: Solve for x
    x = 3,681,745.10/1,690.28
  6. Step 6: Final answer
    x = 2,178.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.