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Finding the Fourth Proportional to 5,776.18, 8,665.18 and 2,490.20

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Solution

The fourth proportional to 5,776.18, 8,665.18 and 2,490.20 is: 3,735.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.18 : 8,665.18 = 2,490.20 : x
  2. Step 2: Convert to fraction form
    5,776.18/8,665.18 = 2,490.20/x
  3. Step 3: Cross multiply
    5,776.18x = 8,665.18 × 2,490.20
  4. Step 4: Simplify right side
    5,776.18x = 21,578,031.24
  5. Step 5: Solve for x
    x = 21,578,031.24/5,776.18
  6. Step 6: Final answer
    x = 3,735.69

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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.