Home / 2,378.49-3,282.30-1,384.35

Finding the Fourth Proportional to 2,378.49, 3,282.30 and 1,384.35

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Solution

The fourth proportional to 2,378.49, 3,282.30 and 1,384.35 is: 1,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.49 : 3,282.30 = 1,384.35 : x
  2. Step 2: Convert to fraction form
    2,378.49/3,282.30 = 1,384.35/x
  3. Step 3: Cross multiply
    2,378.49x = 3,282.30 × 1,384.35
  4. Step 4: Simplify right side
    2,378.49x = 4,543,852.01
  5. Step 5: Solve for x
    x = 4,543,852.01/2,378.49
  6. Step 6: Final answer
    x = 1,910.39

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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.