Home / 2,211.32-3,314.58-749.24

Finding the Fourth Proportional to 2,211.32, 3,314.58 and 749.24

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Solution

The fourth proportional to 2,211.32, 3,314.58 and 749.24 is: 1,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.32 : 3,314.58 = 749.24 : x
  2. Step 2: Convert to fraction form
    2,211.32/3,314.58 = 749.24/x
  3. Step 3: Cross multiply
    2,211.32x = 3,314.58 × 749.24
  4. Step 4: Simplify right side
    2,211.32x = 2,483,415.92
  5. Step 5: Solve for x
    x = 2,483,415.92/2,211.32
  6. Step 6: Final answer
    x = 1,123.05

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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.