Home / 1,575.20-2,374.60-1,469.48

Finding the Fourth Proportional to 1,575.20, 2,374.60 and 1,469.48

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Solution

The fourth proportional to 1,575.20, 2,374.60 and 1,469.48 is: 2,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.20 : 2,374.60 = 1,469.48 : x
  2. Step 2: Convert to fraction form
    1,575.20/2,374.60 = 1,469.48/x
  3. Step 3: Cross multiply
    1,575.20x = 2,374.60 × 1,469.48
  4. Step 4: Simplify right side
    1,575.20x = 3,489,427.21
  5. Step 5: Solve for x
    x = 3,489,427.21/1,575.20
  6. Step 6: Final answer
    x = 2,215.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.