Home / 3,151.52-4,724.08-1,419.68

Finding the Fourth Proportional to 3,151.52, 4,724.08 and 1,419.68

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Solution

The fourth proportional to 3,151.52, 4,724.08 and 1,419.68 is: 2,128.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.52 : 4,724.08 = 1,419.68 : x
  2. Step 2: Convert to fraction form
    3,151.52/4,724.08 = 1,419.68/x
  3. Step 3: Cross multiply
    3,151.52x = 4,724.08 × 1,419.68
  4. Step 4: Simplify right side
    3,151.52x = 6,706,681.89
  5. Step 5: Solve for x
    x = 6,706,681.89/3,151.52
  6. Step 6: Final answer
    x = 2,128.08

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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.