Home / 5,125.58-7,070.09-3,132.68

Finding the Fourth Proportional to 5,125.58, 7,070.09 and 3,132.68

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Solution

The fourth proportional to 5,125.58, 7,070.09 and 3,132.68 is: 4,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.58 : 7,070.09 = 3,132.68 : x
  2. Step 2: Convert to fraction form
    5,125.58/7,070.09 = 3,132.68/x
  3. Step 3: Cross multiply
    5,125.58x = 7,070.09 × 3,132.68
  4. Step 4: Simplify right side
    5,125.58x = 22,148,278.53
  5. Step 5: Solve for x
    x = 22,148,278.53/5,125.58
  6. Step 6: Final answer
    x = 4,321.13

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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.