Home / 2,257.50-3,115.35-1,326.30

Finding the Fourth Proportional to 2,257.50, 3,115.35 and 1,326.30

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Solution

The fourth proportional to 2,257.50, 3,115.35 and 1,326.30 is: 1,830.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.50 : 3,115.35 = 1,326.30 : x
  2. Step 2: Convert to fraction form
    2,257.50/3,115.35 = 1,326.30/x
  3. Step 3: Cross multiply
    2,257.50x = 3,115.35 × 1,326.30
  4. Step 4: Simplify right side
    2,257.50x = 4,131,888.71
  5. Step 5: Solve for x
    x = 4,131,888.71/2,257.50
  6. Step 6: Final answer
    x = 1,830.29

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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.