Home / 2,619.48-3,614.40-1,557.60

Finding the Fourth Proportional to 2,619.48, 3,614.40 and 1,557.60

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Solution

The fourth proportional to 2,619.48, 3,614.40 and 1,557.60 is: 2,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.48 : 3,614.40 = 1,557.60 : x
  2. Step 2: Convert to fraction form
    2,619.48/3,614.40 = 1,557.60/x
  3. Step 3: Cross multiply
    2,619.48x = 3,614.40 × 1,557.60
  4. Step 4: Simplify right side
    2,619.48x = 5,629,789.44
  5. Step 5: Solve for x
    x = 5,629,789.44/2,619.48
  6. Step 6: Final answer
    x = 2,149.20

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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.