Home / 2,138.27-2,950.82-1,254.08

Finding the Fourth Proportional to 2,138.27, 2,950.82 and 1,254.08

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Solution

The fourth proportional to 2,138.27, 2,950.82 and 1,254.08 is: 1,730.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138.27 : 2,950.82 = 1,254.08 : x
  2. Step 2: Convert to fraction form
    2,138.27/2,950.82 = 1,254.08/x
  3. Step 3: Cross multiply
    2,138.27x = 2,950.82 × 1,254.08
  4. Step 4: Simplify right side
    2,138.27x = 3,700,543.32
  5. Step 5: Solve for x
    x = 3,700,543.32/2,138.27
  6. Step 6: Final answer
    x = 1,730.63

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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.