Home / 2,878.32-4,319.55-1,951.58

Finding the Fourth Proportional to 2,878.32, 4,319.55 and 1,951.58

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Solution

The fourth proportional to 2,878.32, 4,319.55 and 1,951.58 is: 2,928.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.32 : 4,319.55 = 1,951.58 : x
  2. Step 2: Convert to fraction form
    2,878.32/4,319.55 = 1,951.58/x
  3. Step 3: Cross multiply
    2,878.32x = 4,319.55 × 1,951.58
  4. Step 4: Simplify right side
    2,878.32x = 8,429,947.39
  5. Step 5: Solve for x
    x = 8,429,947.39/2,878.32
  6. Step 6: Final answer
    x = 2,928.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.