Home / 7,144.75-9,860.95-4,162.35

Finding the Fourth Proportional to 7,144.75, 9,860.95 and 4,162.35

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Solution

The fourth proportional to 7,144.75, 9,860.95 and 4,162.35 is: 5,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144.75 : 9,860.95 = 4,162.35 : x
  2. Step 2: Convert to fraction form
    7,144.75/9,860.95 = 4,162.35/x
  3. Step 3: Cross multiply
    7,144.75x = 9,860.95 × 4,162.35
  4. Step 4: Simplify right side
    7,144.75x = 41,044,725.23
  5. Step 5: Solve for x
    x = 41,044,725.23/7,144.75
  6. Step 6: Final answer
    x = 5,744.74

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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.