Home / 7,821.90-11,732.88-2,275.26

Finding the Fourth Proportional to 7,821.90, 11,732.88 and 2,275.26

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Solution

The fourth proportional to 7,821.90, 11,732.88 and 2,275.26 is: 3,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.90 : 11,732.88 = 2,275.26 : x
  2. Step 2: Convert to fraction form
    7,821.90/11,732.88 = 2,275.26/x
  3. Step 3: Cross multiply
    7,821.90x = 11,732.88 × 2,275.26
  4. Step 4: Simplify right side
    7,821.90x = 26,695,352.55
  5. Step 5: Solve for x
    x = 26,695,352.55/7,821.90
  6. Step 6: Final answer
    x = 3,412.90

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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.