Home / 3,771.04-5,657.60-1,138.76

Finding the Fourth Proportional to 3,771.04, 5,657.60 and 1,138.76

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Solution

The fourth proportional to 3,771.04, 5,657.60 and 1,138.76 is: 1,708.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,771.04 : 5,657.60 = 1,138.76 : x
  2. Step 2: Convert to fraction form
    3,771.04/5,657.60 = 1,138.76/x
  3. Step 3: Cross multiply
    3,771.04x = 5,657.60 × 1,138.76
  4. Step 4: Simplify right side
    3,771.04x = 6,442,648.58
  5. Step 5: Solve for x
    x = 6,442,648.58/3,771.04
  6. Step 6: Final answer
    x = 1,708.45

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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.