Home / 2,112.32-2,915.19-1,273.03

Finding the Fourth Proportional to 2,112.32, 2,915.19 and 1,273.03

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Solution

The fourth proportional to 2,112.32, 2,915.19 and 1,273.03 is: 1,756.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112.32 : 2,915.19 = 1,273.03 : x
  2. Step 2: Convert to fraction form
    2,112.32/2,915.19 = 1,273.03/x
  3. Step 3: Cross multiply
    2,112.32x = 2,915.19 × 1,273.03
  4. Step 4: Simplify right side
    2,112.32x = 3,711,117.04
  5. Step 5: Solve for x
    x = 3,711,117.04/2,112.32
  6. Step 6: Final answer
    x = 1,756.89

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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.