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Finding the Fourth Proportional to 1,506.64, 2,260.65 and 775.84

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Solution

The fourth proportional to 1,506.64, 2,260.65 and 775.84 is: 1,164.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,506.64 : 2,260.65 = 775.84 : x
  2. Step 2: Convert to fraction form
    1,506.64/2,260.65 = 775.84/x
  3. Step 3: Cross multiply
    1,506.64x = 2,260.65 × 775.84
  4. Step 4: Simplify right side
    1,506.64x = 1,753,902.70
  5. Step 5: Solve for x
    x = 1,753,902.70/1,506.64
  6. Step 6: Final answer
    x = 1,164.12

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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.