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Finding the Fourth Proportional to 651.48, 981.80 and 586.56

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Solution

The fourth proportional to 651.48, 981.80 and 586.56 is: 883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.48 : 981.80 = 586.56 : x
  2. Step 2: Convert to fraction form
    651.48/981.80 = 586.56/x
  3. Step 3: Cross multiply
    651.48x = 981.80 × 586.56
  4. Step 4: Simplify right side
    651.48x = 575,884.61
  5. Step 5: Solve for x
    x = 575,884.61/651.48
  6. Step 6: Final answer
    x = 883.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.