Home / 1,779.40-2,454.10-1,336.53

Finding the Fourth Proportional to 1,779.40, 2,454.10 and 1,336.53

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Solution

The fourth proportional to 1,779.40, 2,454.10 and 1,336.53 is: 1,843.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.40 : 2,454.10 = 1,336.53 : x
  2. Step 2: Convert to fraction form
    1,779.40/2,454.10 = 1,336.53/x
  3. Step 3: Cross multiply
    1,779.40x = 2,454.10 × 1,336.53
  4. Step 4: Simplify right side
    1,779.40x = 3,279,984.13
  5. Step 5: Solve for x
    x = 3,279,984.13/1,779.40
  6. Step 6: Final answer
    x = 1,843.31

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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.