Home / 3,742.16-5,164.12-2,170.40

Finding the Fourth Proportional to 3,742.16, 5,164.12 and 2,170.40

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Solution

The fourth proportional to 3,742.16, 5,164.12 and 2,170.40 is: 2,995.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.16 : 5,164.12 = 2,170.40 : x
  2. Step 2: Convert to fraction form
    3,742.16/5,164.12 = 2,170.40/x
  3. Step 3: Cross multiply
    3,742.16x = 5,164.12 × 2,170.40
  4. Step 4: Simplify right side
    3,742.16x = 11,208,206.05
  5. Step 5: Solve for x
    x = 11,208,206.05/3,742.16
  6. Step 6: Final answer
    x = 2,995.12

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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.