Home / 2,378.43-3,283.34-1,383.35

Finding the Fourth Proportional to 2,378.43, 3,283.34 and 1,383.35

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Solution

The fourth proportional to 2,378.43, 3,283.34 and 1,383.35 is: 1,909.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.43 : 3,283.34 = 1,383.35 : x
  2. Step 2: Convert to fraction form
    2,378.43/3,283.34 = 1,383.35/x
  3. Step 3: Cross multiply
    2,378.43x = 3,283.34 × 1,383.35
  4. Step 4: Simplify right side
    2,378.43x = 4,541,985.06
  5. Step 5: Solve for x
    x = 4,541,985.06/2,378.43
  6. Step 6: Final answer
    x = 1,909.66

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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.