Home / 5,615.12-7,763.28-5,370.32

Finding the Fourth Proportional to 5,615.12, 7,763.28 and 5,370.32

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Solution

The fourth proportional to 5,615.12, 7,763.28 and 5,370.32 is: 7,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.12 : 7,763.28 = 5,370.32 : x
  2. Step 2: Convert to fraction form
    5,615.12/7,763.28 = 5,370.32/x
  3. Step 3: Cross multiply
    5,615.12x = 7,763.28 × 5,370.32
  4. Step 4: Simplify right side
    5,615.12x = 41,691,297.85
  5. Step 5: Solve for x
    x = 41,691,297.85/5,615.12
  6. Step 6: Final answer
    x = 7,424.83

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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.