Home / 2,375.60-3,278.48-1,380.51

Finding the Fourth Proportional to 2,375.60, 3,278.48 and 1,380.51

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Solution

The fourth proportional to 2,375.60, 3,278.48 and 1,380.51 is: 1,905.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,375.60 : 3,278.48 = 1,380.51 : x
  2. Step 2: Convert to fraction form
    2,375.60/3,278.48 = 1,380.51/x
  3. Step 3: Cross multiply
    2,375.60x = 3,278.48 × 1,380.51
  4. Step 4: Simplify right side
    2,375.60x = 4,525,967.52
  5. Step 5: Solve for x
    x = 4,525,967.52/2,375.60
  6. Step 6: Final answer
    x = 1,905.19

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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.