Home / 3,078.48-4,248.62-1,752.46

Finding the Fourth Proportional to 3,078.48, 4,248.62 and 1,752.46

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Solution

The fourth proportional to 3,078.48, 4,248.62 and 1,752.46 is: 2,418.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.48 : 4,248.62 = 1,752.46 : x
  2. Step 2: Convert to fraction form
    3,078.48/4,248.62 = 1,752.46/x
  3. Step 3: Cross multiply
    3,078.48x = 4,248.62 × 1,752.46
  4. Step 4: Simplify right side
    3,078.48x = 7,445,523.79
  5. Step 5: Solve for x
    x = 7,445,523.79/3,078.48
  6. Step 6: Final answer
    x = 2,418.57

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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.