Home / 2,210.40-3,066.88-2,191.56

Finding the Fourth Proportional to 2,210.40, 3,066.88 and 2,191.56

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Solution

The fourth proportional to 2,210.40, 3,066.88 and 2,191.56 is: 3,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.40 : 3,066.88 = 2,191.56 : x
  2. Step 2: Convert to fraction form
    2,210.40/3,066.88 = 2,191.56/x
  3. Step 3: Cross multiply
    2,210.40x = 3,066.88 × 2,191.56
  4. Step 4: Simplify right side
    2,210.40x = 6,721,251.53
  5. Step 5: Solve for x
    x = 6,721,251.53/2,210.40
  6. Step 6: Final answer
    x = 3,040.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.