Home / 2,235.42-3,084.82-1,240.67

Finding the Fourth Proportional to 2,235.42, 3,084.82 and 1,240.67

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Solution

The fourth proportional to 2,235.42, 3,084.82 and 1,240.67 is: 1,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.42 : 3,084.82 = 1,240.67 : x
  2. Step 2: Convert to fraction form
    2,235.42/3,084.82 = 1,240.67/x
  3. Step 3: Cross multiply
    2,235.42x = 3,084.82 × 1,240.67
  4. Step 4: Simplify right side
    2,235.42x = 3,827,248.24
  5. Step 5: Solve for x
    x = 3,827,248.24/2,235.42
  6. Step 6: Final answer
    x = 1,712.09

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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.