Home / 4,268.76-6,402.91-1,307.20

Finding the Fourth Proportional to 4,268.76, 6,402.91 and 1,307.20

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Solution

The fourth proportional to 4,268.76, 6,402.91 and 1,307.20 is: 1,960.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.76 : 6,402.91 = 1,307.20 : x
  2. Step 2: Convert to fraction form
    4,268.76/6,402.91 = 1,307.20/x
  3. Step 3: Cross multiply
    4,268.76x = 6,402.91 × 1,307.20
  4. Step 4: Simplify right side
    4,268.76x = 8,369,883.95
  5. Step 5: Solve for x
    x = 8,369,883.95/4,268.76
  6. Step 6: Final answer
    x = 1,960.73

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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.