Home / 2,959.36-4,082.20-1,779.72

Finding the Fourth Proportional to 2,959.36, 4,082.20 and 1,779.72

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Solution

The fourth proportional to 2,959.36, 4,082.20 and 1,779.72 is: 2,454.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,959.36 : 4,082.20 = 1,779.72 : x
  2. Step 2: Convert to fraction form
    2,959.36/4,082.20 = 1,779.72/x
  3. Step 3: Cross multiply
    2,959.36x = 4,082.20 × 1,779.72
  4. Step 4: Simplify right side
    2,959.36x = 7,265,172.98
  5. Step 5: Solve for x
    x = 7,265,172.98/2,959.36
  6. Step 6: Final answer
    x = 2,454.98

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1.5x scale

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.