Home / 2,531.50-3,794.41-1,913.20

Finding the Fourth Proportional to 2,531.50, 3,794.41 and 1,913.20

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Solution

The fourth proportional to 2,531.50, 3,794.41 and 1,913.20 is: 2,867.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,531.50 : 3,794.41 = 1,913.20 : x
  2. Step 2: Convert to fraction form
    2,531.50/3,794.41 = 1,913.20/x
  3. Step 3: Cross multiply
    2,531.50x = 3,794.41 × 1,913.20
  4. Step 4: Simplify right side
    2,531.50x = 7,259,465.21
  5. Step 5: Solve for x
    x = 7,259,465.21/2,531.50
  6. Step 6: Final answer
    x = 2,867.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.