Home / 5,260.11-7,890.89-1,927.92

Finding the Fourth Proportional to 5,260.11, 7,890.89 and 1,927.92

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Solution

The fourth proportional to 5,260.11, 7,890.89 and 1,927.92 is: 2,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.11 : 7,890.89 = 1,927.92 : x
  2. Step 2: Convert to fraction form
    5,260.11/7,890.89 = 1,927.92/x
  3. Step 3: Cross multiply
    5,260.11x = 7,890.89 × 1,927.92
  4. Step 4: Simplify right side
    5,260.11x = 15,213,024.60
  5. Step 5: Solve for x
    x = 15,213,024.60/5,260.11
  6. Step 6: Final answer
    x = 2,892.15

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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.