Home / 7,215.12-10,822.26-3,702.96

Finding the Fourth Proportional to 7,215.12, 10,822.26 and 3,702.96

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Solution

The fourth proportional to 7,215.12, 10,822.26 and 3,702.96 is: 5,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.12 : 10,822.26 = 3,702.96 : x
  2. Step 2: Convert to fraction form
    7,215.12/10,822.26 = 3,702.96/x
  3. Step 3: Cross multiply
    7,215.12x = 10,822.26 × 3,702.96
  4. Step 4: Simplify right side
    7,215.12x = 40,074,395.89
  5. Step 5: Solve for x
    x = 40,074,395.89/7,215.12
  6. Step 6: Final answer
    x = 5,554.22

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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.