Home / 5,101.60-7,038.48-3,239.68

Finding the Fourth Proportional to 5,101.60, 7,038.48 and 3,239.68

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Solution

The fourth proportional to 5,101.60, 7,038.48 and 3,239.68 is: 4,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.60 : 7,038.48 = 3,239.68 : x
  2. Step 2: Convert to fraction form
    5,101.60/7,038.48 = 3,239.68/x
  3. Step 3: Cross multiply
    5,101.60x = 7,038.48 × 3,239.68
  4. Step 4: Simplify right side
    5,101.60x = 22,802,422.89
  5. Step 5: Solve for x
    x = 22,802,422.89/5,101.60
  6. Step 6: Final answer
    x = 4,469.66

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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.