Home / 1,690.27-2,332.15-1,027.15

Finding the Fourth Proportional to 1,690.27, 2,332.15 and 1,027.15

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Solution

The fourth proportional to 1,690.27, 2,332.15 and 1,027.15 is: 1,417.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.27 : 2,332.15 = 1,027.15 : x
  2. Step 2: Convert to fraction form
    1,690.27/2,332.15 = 1,027.15/x
  3. Step 3: Cross multiply
    1,690.27x = 2,332.15 × 1,027.15
  4. Step 4: Simplify right side
    1,690.27x = 2,395,467.87
  5. Step 5: Solve for x
    x = 2,395,467.87/1,690.27
  6. Step 6: Final answer
    x = 1,417.21

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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.