Home / 2,690.74-4,036.11-1,229.50

Finding the Fourth Proportional to 2,690.74, 4,036.11 and 1,229.50

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Solution

The fourth proportional to 2,690.74, 4,036.11 and 1,229.50 is: 1,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,690.74 : 4,036.11 = 1,229.50 : x
  2. Step 2: Convert to fraction form
    2,690.74/4,036.11 = 1,229.50/x
  3. Step 3: Cross multiply
    2,690.74x = 4,036.11 × 1,229.50
  4. Step 4: Simplify right side
    2,690.74x = 4,962,397.25
  5. Step 5: Solve for x
    x = 4,962,397.25/2,690.74
  6. Step 6: Final answer
    x = 1,844.25

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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.