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Finding the Fourth Proportional to 1,164.58, 1,747.18 and 384.70

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Solution

The fourth proportional to 1,164.58, 1,747.18 and 384.70 is: 577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.58 : 1,747.18 = 384.70 : x
  2. Step 2: Convert to fraction form
    1,164.58/1,747.18 = 384.70/x
  3. Step 3: Cross multiply
    1,164.58x = 1,747.18 × 384.70
  4. Step 4: Simplify right side
    1,164.58x = 672,140.15
  5. Step 5: Solve for x
    x = 672,140.15/1,164.58
  6. Step 6: Final answer
    x = 577.15

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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.