Home / 2,232.07-3,079.50-1,392.10

Finding the Fourth Proportional to 2,232.07, 3,079.50 and 1,392.10

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Solution

The fourth proportional to 2,232.07, 3,079.50 and 1,392.10 is: 1,920.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,232.07 : 3,079.50 = 1,392.10 : x
  2. Step 2: Convert to fraction form
    2,232.07/3,079.50 = 1,392.10/x
  3. Step 3: Cross multiply
    2,232.07x = 3,079.50 × 1,392.10
  4. Step 4: Simplify right side
    2,232.07x = 4,286,971.95
  5. Step 5: Solve for x
    x = 4,286,971.95/2,232.07
  6. Step 6: Final answer
    x = 1,920.63

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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.