Home / 4,278.17-6,417.36-1,275.91

Finding the Fourth Proportional to 4,278.17, 6,417.36 and 1,275.91

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Solution

The fourth proportional to 4,278.17, 6,417.36 and 1,275.91 is: 1,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.17 : 6,417.36 = 1,275.91 : x
  2. Step 2: Convert to fraction form
    4,278.17/6,417.36 = 1,275.91/x
  3. Step 3: Cross multiply
    4,278.17x = 6,417.36 × 1,275.91
  4. Step 4: Simplify right side
    4,278.17x = 8,187,957.75
  5. Step 5: Solve for x
    x = 8,187,957.75/4,278.17
  6. Step 6: Final answer
    x = 1,913.89

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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.