Home / 2,959.10-4,081.05-1,779.95

Finding the Fourth Proportional to 2,959.10, 4,081.05 and 1,779.95

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Solution

The fourth proportional to 2,959.10, 4,081.05 and 1,779.95 is: 2,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.10 : 4,081.05 = 1,779.95 : x
  2. Step 2: Convert to fraction form
    2,959.10/4,081.05 = 1,779.95/x
  3. Step 3: Cross multiply
    2,959.10x = 4,081.05 × 1,779.95
  4. Step 4: Simplify right side
    2,959.10x = 7,264,064.95
  5. Step 5: Solve for x
    x = 7,264,064.95/2,959.10
  6. Step 6: Final answer
    x = 2,454.82

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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.