Home / 5,260.08-7,887.32-1,561.80

Finding the Fourth Proportional to 5,260.08, 7,887.32 and 1,561.80

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Solution

The fourth proportional to 5,260.08, 7,887.32 and 1,561.80 is: 2,341.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,260.08 : 7,887.32 = 1,561.80 : x
  2. Step 2: Convert to fraction form
    5,260.08/7,887.32 = 1,561.80/x
  3. Step 3: Cross multiply
    5,260.08x = 7,887.32 × 1,561.80
  4. Step 4: Simplify right side
    5,260.08x = 12,318,416.38
  5. Step 5: Solve for x
    x = 12,318,416.38/5,260.08
  6. Step 6: Final answer
    x = 2,341.87

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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.