Home / 2,140.11-2,950.83-1,393.02

Finding the Fourth Proportional to 2,140.11, 2,950.83 and 1,393.02

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Solution

The fourth proportional to 2,140.11, 2,950.83 and 1,393.02 is: 1,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.11 : 2,950.83 = 1,393.02 : x
  2. Step 2: Convert to fraction form
    2,140.11/2,950.83 = 1,393.02/x
  3. Step 3: Cross multiply
    2,140.11x = 2,950.83 × 1,393.02
  4. Step 4: Simplify right side
    2,140.11x = 4,110,565.21
  5. Step 5: Solve for x
    x = 4,110,565.21/2,140.11
  6. Step 6: Final answer
    x = 1,920.73

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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.