Home / 2,348.20-3,240.29-1,403.80

Finding the Fourth Proportional to 2,348.20, 3,240.29 and 1,403.80

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Solution

The fourth proportional to 2,348.20, 3,240.29 and 1,403.80 is: 1,937.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.20 : 3,240.29 = 1,403.80 : x
  2. Step 2: Convert to fraction form
    2,348.20/3,240.29 = 1,403.80/x
  3. Step 3: Cross multiply
    2,348.20x = 3,240.29 × 1,403.80
  4. Step 4: Simplify right side
    2,348.20x = 4,548,719.37
  5. Step 5: Solve for x
    x = 4,548,719.37/2,348.20
  6. Step 6: Final answer
    x = 1,937.11

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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.