Home / 2,148.26-2,964.76-1,240.05

Finding the Fourth Proportional to 2,148.26, 2,964.76 and 1,240.05

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Solution

The fourth proportional to 2,148.26, 2,964.76 and 1,240.05 is: 1,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.26 : 2,964.76 = 1,240.05 : x
  2. Step 2: Convert to fraction form
    2,148.26/2,964.76 = 1,240.05/x
  3. Step 3: Cross multiply
    2,148.26x = 2,964.76 × 1,240.05
  4. Step 4: Simplify right side
    2,148.26x = 3,676,447.54
  5. Step 5: Solve for x
    x = 3,676,447.54/2,148.26
  6. Step 6: Final answer
    x = 1,711.36

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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.