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Finding the Fourth Proportional to 1,159.91, 1,739.76 and 544.71

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Solution

The fourth proportional to 1,159.91, 1,739.76 and 544.71 is: 817.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159.91 : 1,739.76 = 544.71 : x
  2. Step 2: Convert to fraction form
    1,159.91/1,739.76 = 544.71/x
  3. Step 3: Cross multiply
    1,159.91x = 1,739.76 × 544.71
  4. Step 4: Simplify right side
    1,159.91x = 947,664.67
  5. Step 5: Solve for x
    x = 947,664.67/1,159.91
  6. Step 6: Final answer
    x = 817.02

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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.