Home / 2,439.36-3,366.36-1,445.40

Finding the Fourth Proportional to 2,439.36, 3,366.36 and 1,445.40

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Solution

The fourth proportional to 2,439.36, 3,366.36 and 1,445.40 is: 1,994.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.36 : 3,366.36 = 1,445.40 : x
  2. Step 2: Convert to fraction form
    2,439.36/3,366.36 = 1,445.40/x
  3. Step 3: Cross multiply
    2,439.36x = 3,366.36 × 1,445.40
  4. Step 4: Simplify right side
    2,439.36x = 4,865,736.74
  5. Step 5: Solve for x
    x = 4,865,736.74/2,439.36
  6. Step 6: Final answer
    x = 1,994.68

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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.