Home / 2,479.29-3,421.27-1,360

Finding the Fourth Proportional to 2,479.29, 3,421.27 and 1,360

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Solution

The fourth proportional to 2,479.29, 3,421.27 and 1,360 is: 1,876.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.29 : 3,421.27 = 1,360 : x
  2. Step 2: Convert to fraction form
    2,479.29/3,421.27 = 1,360/x
  3. Step 3: Cross multiply
    2,479.29x = 3,421.27 × 1,360
  4. Step 4: Simplify right side
    2,479.29x = 4,652,927.20
  5. Step 5: Solve for x
    x = 4,652,927.20/2,479.29
  6. Step 6: Final answer
    x = 1,876.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.