Home / 2,439.84-3,366.76-1,377.48

Finding the Fourth Proportional to 2,439.84, 3,366.76 and 1,377.48

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Solution

The fourth proportional to 2,439.84, 3,366.76 and 1,377.48 is: 1,900.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,439.84 : 3,366.76 = 1,377.48 : x
  2. Step 2: Convert to fraction form
    2,439.84/3,366.76 = 1,377.48/x
  3. Step 3: Cross multiply
    2,439.84x = 3,366.76 × 1,377.48
  4. Step 4: Simplify right side
    2,439.84x = 4,637,644.56
  5. Step 5: Solve for x
    x = 4,637,644.56/2,439.84
  6. Step 6: Final answer
    x = 1,900.80

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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.