Home / 5,110.48-7,053.10-3,120.60

Finding the Fourth Proportional to 5,110.48, 7,053.10 and 3,120.60

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Solution

The fourth proportional to 5,110.48, 7,053.10 and 3,120.60 is: 4,306.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,110.48 : 7,053.10 = 3,120.60 : x
  2. Step 2: Convert to fraction form
    5,110.48/7,053.10 = 3,120.60/x
  3. Step 3: Cross multiply
    5,110.48x = 7,053.10 × 3,120.60
  4. Step 4: Simplify right side
    5,110.48x = 22,009,903.86
  5. Step 5: Solve for x
    x = 22,009,903.86/5,110.48
  6. Step 6: Final answer
    x = 4,306.82

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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.