Home / 2,125.71-2,932.61-1,681.83

Finding the Fourth Proportional to 2,125.71, 2,932.61 and 1,681.83

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Solution

The fourth proportional to 2,125.71, 2,932.61 and 1,681.83 is: 2,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.71 : 2,932.61 = 1,681.83 : x
  2. Step 2: Convert to fraction form
    2,125.71/2,932.61 = 1,681.83/x
  3. Step 3: Cross multiply
    2,125.71x = 2,932.61 × 1,681.83
  4. Step 4: Simplify right side
    2,125.71x = 4,932,143.07
  5. Step 5: Solve for x
    x = 4,932,143.07/2,125.71
  6. Step 6: Final answer
    x = 2,320.23

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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.