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Finding the Fourth Proportional to 5,777.61, 8,663.18 and 3,931.22

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Solution

The fourth proportional to 5,777.61, 8,663.18 and 3,931.22 is: 5,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.61 : 8,663.18 = 3,931.22 : x
  2. Step 2: Convert to fraction form
    5,777.61/8,663.18 = 3,931.22/x
  3. Step 3: Cross multiply
    5,777.61x = 8,663.18 × 3,931.22
  4. Step 4: Simplify right side
    5,777.61x = 34,056,803.51
  5. Step 5: Solve for x
    x = 34,056,803.51/5,777.61
  6. Step 6: Final answer
    x = 5,894.62

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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.