Home / 4,292.78-6,439.28-1,371.08

Finding the Fourth Proportional to 4,292.78, 6,439.28 and 1,371.08

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Solution

The fourth proportional to 4,292.78, 6,439.28 and 1,371.08 is: 2,056.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.78 : 6,439.28 = 1,371.08 : x
  2. Step 2: Convert to fraction form
    4,292.78/6,439.28 = 1,371.08/x
  3. Step 3: Cross multiply
    4,292.78x = 6,439.28 × 1,371.08
  4. Step 4: Simplify right side
    4,292.78x = 8,828,768.02
  5. Step 5: Solve for x
    x = 8,828,768.02/4,292.78
  6. Step 6: Final answer
    x = 2,056.66

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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.