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Finding the Fourth Proportional to 1,463.85, 2,020.14 and 800.76

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Solution

The fourth proportional to 1,463.85, 2,020.14 and 800.76 is: 1,105.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.85 : 2,020.14 = 800.76 : x
  2. Step 2: Convert to fraction form
    1,463.85/2,020.14 = 800.76/x
  3. Step 3: Cross multiply
    1,463.85x = 2,020.14 × 800.76
  4. Step 4: Simplify right side
    1,463.85x = 1,617,647.31
  5. Step 5: Solve for x
    x = 1,617,647.31/1,463.85
  6. Step 6: Final answer
    x = 1,105.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.