Home / 1,639.14-2,459.07-1,152.42

Finding the Fourth Proportional to 1,639.14, 2,459.07 and 1,152.42

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Solution

The fourth proportional to 1,639.14, 2,459.07 and 1,152.42 is: 1,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.14 : 2,459.07 = 1,152.42 : x
  2. Step 2: Convert to fraction form
    1,639.14/2,459.07 = 1,152.42/x
  3. Step 3: Cross multiply
    1,639.14x = 2,459.07 × 1,152.42
  4. Step 4: Simplify right side
    1,639.14x = 2,833,881.45
  5. Step 5: Solve for x
    x = 2,833,881.45/1,639.14
  6. Step 6: Final answer
    x = 1,728.88

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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.