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Finding the Fourth Proportional to 1,164.55, 1,747.13 and 384.67

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Solution

The fourth proportional to 1,164.55, 1,747.13 and 384.67 is: 577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.55 : 1,747.13 = 384.67 : x
  2. Step 2: Convert to fraction form
    1,164.55/1,747.13 = 384.67/x
  3. Step 3: Cross multiply
    1,164.55x = 1,747.13 × 384.67
  4. Step 4: Simplify right side
    1,164.55x = 672,068.50
  5. Step 5: Solve for x
    x = 672,068.50/1,164.55
  6. Step 6: Final answer
    x = 577.11

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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.