Home / 2,865.41-4,290.82-1,888.55

Finding the Fourth Proportional to 2,865.41, 4,290.82 and 1,888.55

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Solution

The fourth proportional to 2,865.41, 4,290.82 and 1,888.55 is: 2,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.41 : 4,290.82 = 1,888.55 : x
  2. Step 2: Convert to fraction form
    2,865.41/4,290.82 = 1,888.55/x
  3. Step 3: Cross multiply
    2,865.41x = 4,290.82 × 1,888.55
  4. Step 4: Simplify right side
    2,865.41x = 8,103,428.11
  5. Step 5: Solve for x
    x = 8,103,428.11/2,865.41
  6. Step 6: Final answer
    x = 2,828.02

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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.