Home / 3,740.04-5,160.78-2,145.96

Finding the Fourth Proportional to 3,740.04, 5,160.78 and 2,145.96

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Solution

The fourth proportional to 3,740.04, 5,160.78 and 2,145.96 is: 2,961.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,740.04 : 5,160.78 = 2,145.96 : x
  2. Step 2: Convert to fraction form
    3,740.04/5,160.78 = 2,145.96/x
  3. Step 3: Cross multiply
    3,740.04x = 5,160.78 × 2,145.96
  4. Step 4: Simplify right side
    3,740.04x = 11,074,827.45
  5. Step 5: Solve for x
    x = 11,074,827.45/3,740.04
  6. Step 6: Final answer
    x = 2,961.15

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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.