Home / 3,078.89-4,248.80-1,752.56

Finding the Fourth Proportional to 3,078.89, 4,248.80 and 1,752.56

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Solution

The fourth proportional to 3,078.89, 4,248.80 and 1,752.56 is: 2,418.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.89 : 4,248.80 = 1,752.56 : x
  2. Step 2: Convert to fraction form
    3,078.89/4,248.80 = 1,752.56/x
  3. Step 3: Cross multiply
    3,078.89x = 4,248.80 × 1,752.56
  4. Step 4: Simplify right side
    3,078.89x = 7,446,246.92
  5. Step 5: Solve for x
    x = 7,446,246.92/3,078.89
  6. Step 6: Final answer
    x = 2,418.49

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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.