Home / 1,882.31-2,823.11-712.42

Finding the Fourth Proportional to 1,882.31, 2,823.11 and 712.42

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Solution

The fourth proportional to 1,882.31, 2,823.11 and 712.42 is: 1,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882.31 : 2,823.11 = 712.42 : x
  2. Step 2: Convert to fraction form
    1,882.31/2,823.11 = 712.42/x
  3. Step 3: Cross multiply
    1,882.31x = 2,823.11 × 712.42
  4. Step 4: Simplify right side
    1,882.31x = 2,011,240.03
  5. Step 5: Solve for x
    x = 2,011,240.03/1,882.31
  6. Step 6: Final answer
    x = 1,068.50

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1.5x scale

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.