Home / 2,378.06-3,281.11-1,433.63

Finding the Fourth Proportional to 2,378.06, 3,281.11 and 1,433.63

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Solution

The fourth proportional to 2,378.06, 3,281.11 and 1,433.63 is: 1,978.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.06 : 3,281.11 = 1,433.63 : x
  2. Step 2: Convert to fraction form
    2,378.06/3,281.11 = 1,433.63/x
  3. Step 3: Cross multiply
    2,378.06x = 3,281.11 × 1,433.63
  4. Step 4: Simplify right side
    2,378.06x = 4,703,902.35
  5. Step 5: Solve for x
    x = 4,703,902.35/2,378.06
  6. Step 6: Final answer
    x = 1,978.04

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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.