Home / 2,439.66-3,366.74-1,320.60

Finding the Fourth Proportional to 2,439.66, 3,366.74 and 1,320.60

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Solution

The fourth proportional to 2,439.66, 3,366.74 and 1,320.60 is: 1,822.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.66 : 3,366.74 = 1,320.60 : x
  2. Step 2: Convert to fraction form
    2,439.66/3,366.74 = 1,320.60/x
  3. Step 3: Cross multiply
    2,439.66x = 3,366.74 × 1,320.60
  4. Step 4: Simplify right side
    2,439.66x = 4,446,116.84
  5. Step 5: Solve for x
    x = 4,446,116.84/2,439.66
  6. Step 6: Final answer
    x = 1,822.43

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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.