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Finding the Fourth Proportional to 1,464.10, 2,019.06 and 959.20

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Solution

The fourth proportional to 1,464.10, 2,019.06 and 959.20 is: 1,322.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,464.10 : 2,019.06 = 959.20 : x
  2. Step 2: Convert to fraction form
    1,464.10/2,019.06 = 959.20/x
  3. Step 3: Cross multiply
    1,464.10x = 2,019.06 × 959.20
  4. Step 4: Simplify right side
    1,464.10x = 1,936,677.30
  5. Step 5: Solve for x
    x = 1,936,677.30/1,464.10
  6. Step 6: Final answer
    x = 1,322.78

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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.