Home / 2,479.02-3,420.98-1,359.95

Finding the Fourth Proportional to 2,479.02, 3,420.98 and 1,359.95

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Solution

The fourth proportional to 2,479.02, 3,420.98 and 1,359.95 is: 1,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.02 : 3,420.98 = 1,359.95 : x
  2. Step 2: Convert to fraction form
    2,479.02/3,420.98 = 1,359.95/x
  3. Step 3: Cross multiply
    2,479.02x = 3,420.98 × 1,359.95
  4. Step 4: Simplify right side
    2,479.02x = 4,652,344.65
  5. Step 5: Solve for x
    x = 4,652,344.65/2,479.02
  6. Step 6: Final answer
    x = 1,876.69

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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.