Home / 3,286.76-4,931.34-1,555.52

Finding the Fourth Proportional to 3,286.76, 4,931.34 and 1,555.52

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Solution

The fourth proportional to 3,286.76, 4,931.34 and 1,555.52 is: 2,333.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.76 : 4,931.34 = 1,555.52 : x
  2. Step 2: Convert to fraction form
    3,286.76/4,931.34 = 1,555.52/x
  3. Step 3: Cross multiply
    3,286.76x = 4,931.34 × 1,555.52
  4. Step 4: Simplify right side
    3,286.76x = 7,670,798.00
  5. Step 5: Solve for x
    x = 7,670,798.00/3,286.76
  6. Step 6: Final answer
    x = 2,333.85

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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.