Home / 3,280.78-4,526.12-2,286.63

Finding the Fourth Proportional to 3,280.78, 4,526.12 and 2,286.63

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Solution

The fourth proportional to 3,280.78, 4,526.12 and 2,286.63 is: 3,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.78 : 4,526.12 = 2,286.63 : x
  2. Step 2: Convert to fraction form
    3,280.78/4,526.12 = 2,286.63/x
  3. Step 3: Cross multiply
    3,280.78x = 4,526.12 × 2,286.63
  4. Step 4: Simplify right side
    3,280.78x = 10,349,527.71
  5. Step 5: Solve for x
    x = 10,349,527.71/3,280.78
  6. Step 6: Final answer
    x = 3,154.60

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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.