Home / 2,278.48-3,142.40-1,925.24

Finding the Fourth Proportional to 2,278.48, 3,142.40 and 1,925.24

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Solution

The fourth proportional to 2,278.48, 3,142.40 and 1,925.24 is: 2,655.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.48 : 3,142.40 = 1,925.24 : x
  2. Step 2: Convert to fraction form
    2,278.48/3,142.40 = 1,925.24/x
  3. Step 3: Cross multiply
    2,278.48x = 3,142.40 × 1,925.24
  4. Step 4: Simplify right side
    2,278.48x = 6,049,874.18
  5. Step 5: Solve for x
    x = 6,049,874.18/2,278.48
  6. Step 6: Final answer
    x = 2,655.22

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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.