Home / 5,118.48-7,062.40-3,101.58

Finding the Fourth Proportional to 5,118.48, 7,062.40 and 3,101.58

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Solution

The fourth proportional to 5,118.48, 7,062.40 and 3,101.58 is: 4,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.48 : 7,062.40 = 3,101.58 : x
  2. Step 2: Convert to fraction form
    5,118.48/7,062.40 = 3,101.58/x
  3. Step 3: Cross multiply
    5,118.48x = 7,062.40 × 3,101.58
  4. Step 4: Simplify right side
    5,118.48x = 21,904,598.59
  5. Step 5: Solve for x
    x = 21,904,598.59/5,118.48
  6. Step 6: Final answer
    x = 4,279.51

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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.