Home / 1,779.27-2,454.98-1,080.51

Finding the Fourth Proportional to 1,779.27, 2,454.98 and 1,080.51

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Solution

The fourth proportional to 1,779.27, 2,454.98 and 1,080.51 is: 1,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.27 : 2,454.98 = 1,080.51 : x
  2. Step 2: Convert to fraction form
    1,779.27/2,454.98 = 1,080.51/x
  3. Step 3: Cross multiply
    1,779.27x = 2,454.98 × 1,080.51
  4. Step 4: Simplify right side
    1,779.27x = 2,652,625.04
  5. Step 5: Solve for x
    x = 2,652,625.04/1,779.27
  6. Step 6: Final answer
    x = 1,490.85

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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.