Home / 7,028.12-10,543.55-2,645.61

Finding the Fourth Proportional to 7,028.12, 10,543.55 and 2,645.61

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Solution

The fourth proportional to 7,028.12, 10,543.55 and 2,645.61 is: 3,968.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028.12 : 10,543.55 = 2,645.61 : x
  2. Step 2: Convert to fraction form
    7,028.12/10,543.55 = 2,645.61/x
  3. Step 3: Cross multiply
    7,028.12x = 10,543.55 × 2,645.61
  4. Step 4: Simplify right side
    7,028.12x = 27,894,108.09
  5. Step 5: Solve for x
    x = 27,894,108.09/7,028.12
  6. Step 6: Final answer
    x = 3,968.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.