Home / 4,378.15-6,567.22-1,878.79

Finding the Fourth Proportional to 4,378.15, 6,567.22 and 1,878.79

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Solution

The fourth proportional to 4,378.15, 6,567.22 and 1,878.79 is: 2,818.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,378.15 : 6,567.22 = 1,878.79 : x
  2. Step 2: Convert to fraction form
    4,378.15/6,567.22 = 1,878.79/x
  3. Step 3: Cross multiply
    4,378.15x = 6,567.22 × 1,878.79
  4. Step 4: Simplify right side
    4,378.15x = 12,338,422.57
  5. Step 5: Solve for x
    x = 12,338,422.57/4,378.15
  6. Step 6: Final answer
    x = 2,818.19

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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.