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Finding the Fourth Proportional to 1,463.93, 2,020.40 and 960.20

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Solution

The fourth proportional to 1,463.93, 2,020.40 and 960.20 is: 1,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,463.93 : 2,020.40 = 960.20 : x
  2. Step 2: Convert to fraction form
    1,463.93/2,020.40 = 960.20/x
  3. Step 3: Cross multiply
    1,463.93x = 2,020.40 × 960.20
  4. Step 4: Simplify right side
    1,463.93x = 1,939,995.53
  5. Step 5: Solve for x
    x = 1,939,995.53/1,463.93
  6. Step 6: Final answer
    x = 1,325.20

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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.