Home / 5,187.90-7,777.89-2,592.66

Finding the Fourth Proportional to 5,187.90, 7,777.89 and 2,592.66

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Solution

The fourth proportional to 5,187.90, 7,777.89 and 2,592.66 is: 3,887.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.90 : 7,777.89 = 2,592.66 : x
  2. Step 2: Convert to fraction form
    5,187.90/7,777.89 = 2,592.66/x
  3. Step 3: Cross multiply
    5,187.90x = 7,777.89 × 2,592.66
  4. Step 4: Simplify right side
    5,187.90x = 20,165,424.29
  5. Step 5: Solve for x
    x = 20,165,424.29/5,187.90
  6. Step 6: Final answer
    x = 3,887.01

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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.