Home / 3,740.40-5,159.64-2,340.72

Finding the Fourth Proportional to 3,740.40, 5,159.64 and 2,340.72

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Solution

The fourth proportional to 3,740.40, 5,159.64 and 2,340.72 is: 3,228.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.40 : 5,159.64 = 2,340.72 : x
  2. Step 2: Convert to fraction form
    3,740.40/5,159.64 = 2,340.72/x
  3. Step 3: Cross multiply
    3,740.40x = 5,159.64 × 2,340.72
  4. Step 4: Simplify right side
    3,740.40x = 12,077,272.54
  5. Step 5: Solve for x
    x = 12,077,272.54/3,740.40
  6. Step 6: Final answer
    x = 3,228.87

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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.