Home / 7,639.65-10,542.42-4,281.80

Finding the Fourth Proportional to 7,639.65, 10,542.42 and 4,281.80

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Solution

The fourth proportional to 7,639.65, 10,542.42 and 4,281.80 is: 5,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.65 : 10,542.42 = 4,281.80 : x
  2. Step 2: Convert to fraction form
    7,639.65/10,542.42 = 4,281.80/x
  3. Step 3: Cross multiply
    7,639.65x = 10,542.42 × 4,281.80
  4. Step 4: Simplify right side
    7,639.65x = 45,140,481.24
  5. Step 5: Solve for x
    x = 45,140,481.24/7,639.65
  6. Step 6: Final answer
    x = 5,908.71

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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.