Home / 2,135.57-2,946.68-1,251.05

Finding the Fourth Proportional to 2,135.57, 2,946.68 and 1,251.05

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Solution

The fourth proportional to 2,135.57, 2,946.68 and 1,251.05 is: 1,726.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.57 : 2,946.68 = 1,251.05 : x
  2. Step 2: Convert to fraction form
    2,135.57/2,946.68 = 1,251.05/x
  3. Step 3: Cross multiply
    2,135.57x = 2,946.68 × 1,251.05
  4. Step 4: Simplify right side
    2,135.57x = 3,686,427.72
  5. Step 5: Solve for x
    x = 3,686,427.72/2,135.57
  6. Step 6: Final answer
    x = 1,726.21

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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.