Home / 2,712.13-3,742.74-1,470.13

Finding the Fourth Proportional to 2,712.13, 3,742.74 and 1,470.13

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Solution

The fourth proportional to 2,712.13, 3,742.74 and 1,470.13 is: 2,028.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.13 : 3,742.74 = 1,470.13 : x
  2. Step 2: Convert to fraction form
    2,712.13/3,742.74 = 1,470.13/x
  3. Step 3: Cross multiply
    2,712.13x = 3,742.74 × 1,470.13
  4. Step 4: Simplify right side
    2,712.13x = 5,502,314.36
  5. Step 5: Solve for x
    x = 5,502,314.36/2,712.13
  6. Step 6: Final answer
    x = 2,028.78

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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.