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Finding the Fourth Proportional to 1,164.77, 1,746.62 and 434.15

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Solution

The fourth proportional to 1,164.77, 1,746.62 and 434.15 is: 651.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.77 : 1,746.62 = 434.15 : x
  2. Step 2: Convert to fraction form
    1,164.77/1,746.62 = 434.15/x
  3. Step 3: Cross multiply
    1,164.77x = 1,746.62 × 434.15
  4. Step 4: Simplify right side
    1,164.77x = 758,298.90
  5. Step 5: Solve for x
    x = 758,298.90/1,164.77
  6. Step 6: Final answer
    x = 651.03

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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.