Home / 3,387.95-4,675.40-1,895.88

Finding the Fourth Proportional to 3,387.95, 4,675.40 and 1,895.88

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Solution

The fourth proportional to 3,387.95, 4,675.40 and 1,895.88 is: 2,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.95 : 4,675.40 = 1,895.88 : x
  2. Step 2: Convert to fraction form
    3,387.95/4,675.40 = 1,895.88/x
  3. Step 3: Cross multiply
    3,387.95x = 4,675.40 × 1,895.88
  4. Step 4: Simplify right side
    3,387.95x = 8,863,987.87
  5. Step 5: Solve for x
    x = 8,863,987.87/3,387.95
  6. Step 6: Final answer
    x = 2,616.33

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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.