Home / 2,140.93-2,954.45-1,256.56

Finding the Fourth Proportional to 2,140.93, 2,954.45 and 1,256.56

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Solution

The fourth proportional to 2,140.93, 2,954.45 and 1,256.56 is: 1,734.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.93 : 2,954.45 = 1,256.56 : x
  2. Step 2: Convert to fraction form
    2,140.93/2,954.45 = 1,256.56/x
  3. Step 3: Cross multiply
    2,140.93x = 2,954.45 × 1,256.56
  4. Step 4: Simplify right side
    2,140.93x = 3,712,439.45
  5. Step 5: Solve for x
    x = 3,712,439.45/2,140.93
  6. Step 6: Final answer
    x = 1,734.03

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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.