Home / 1,690.71-2,332.47-1,027.63

Finding the Fourth Proportional to 1,690.71, 2,332.47 and 1,027.63

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Solution

The fourth proportional to 1,690.71, 2,332.47 and 1,027.63 is: 1,417.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690.71 : 2,332.47 = 1,027.63 : x
  2. Step 2: Convert to fraction form
    1,690.71/2,332.47 = 1,027.63/x
  3. Step 3: Cross multiply
    1,690.71x = 2,332.47 × 1,027.63
  4. Step 4: Simplify right side
    1,690.71x = 2,396,916.15
  5. Step 5: Solve for x
    x = 2,396,916.15/1,690.71
  6. Step 6: Final answer
    x = 1,417.70

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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.