Home / 5,317.36-7,343.40-3,988.96

Finding the Fourth Proportional to 5,317.36, 7,343.40 and 3,988.96

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Solution

The fourth proportional to 5,317.36, 7,343.40 and 3,988.96 is: 5,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,317.36 : 7,343.40 = 3,988.96 : x
  2. Step 2: Convert to fraction form
    5,317.36/7,343.40 = 3,988.96/x
  3. Step 3: Cross multiply
    5,317.36x = 7,343.40 × 3,988.96
  4. Step 4: Simplify right side
    5,317.36x = 29,292,528.86
  5. Step 5: Solve for x
    x = 29,292,528.86/5,317.36
  6. Step 6: Final answer
    x = 5,508.85

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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.