Home / 7,074.59-9,762.66-3,930.98

Finding the Fourth Proportional to 7,074.59, 9,762.66 and 3,930.98

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Solution

The fourth proportional to 7,074.59, 9,762.66 and 3,930.98 is: 5,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,074.59 : 9,762.66 = 3,930.98 : x
  2. Step 2: Convert to fraction form
    7,074.59/9,762.66 = 3,930.98/x
  3. Step 3: Cross multiply
    7,074.59x = 9,762.66 × 3,930.98
  4. Step 4: Simplify right side
    7,074.59x = 38,376,772.39
  5. Step 5: Solve for x
    x = 38,376,772.39/7,074.59
  6. Step 6: Final answer
    x = 5,424.60

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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.