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Finding the Fourth Proportional to 1,463.15, 2,018.96 and 873.56

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Solution

The fourth proportional to 1,463.15, 2,018.96 and 873.56 is: 1,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.15 : 2,018.96 = 873.56 : x
  2. Step 2: Convert to fraction form
    1,463.15/2,018.96 = 873.56/x
  3. Step 3: Cross multiply
    1,463.15x = 2,018.96 × 873.56
  4. Step 4: Simplify right side
    1,463.15x = 1,763,686.65
  5. Step 5: Solve for x
    x = 1,763,686.65/1,463.15
  6. Step 6: Final answer
    x = 1,205.40

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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.