Home / 3,078.32-4,248.55-1,959.74

Finding the Fourth Proportional to 3,078.32, 4,248.55 and 1,959.74

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Solution

The fourth proportional to 3,078.32, 4,248.55 and 1,959.74 is: 2,704.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.32 : 4,248.55 = 1,959.74 : x
  2. Step 2: Convert to fraction form
    3,078.32/4,248.55 = 1,959.74/x
  3. Step 3: Cross multiply
    3,078.32x = 4,248.55 × 1,959.74
  4. Step 4: Simplify right side
    3,078.32x = 8,326,050.52
  5. Step 5: Solve for x
    x = 8,326,050.52/3,078.32
  6. Step 6: Final answer
    x = 2,704.74

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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.