Home / 2,348.34-3,240.57-1,378.48

Finding the Fourth Proportional to 2,348.34, 3,240.57 and 1,378.48

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Solution

The fourth proportional to 2,348.34, 3,240.57 and 1,378.48 is: 1,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.34 : 3,240.57 = 1,378.48 : x
  2. Step 2: Convert to fraction form
    2,348.34/3,240.57 = 1,378.48/x
  3. Step 3: Cross multiply
    2,348.34x = 3,240.57 × 1,378.48
  4. Step 4: Simplify right side
    2,348.34x = 4,467,060.93
  5. Step 5: Solve for x
    x = 4,467,060.93/2,348.34
  6. Step 6: Final answer
    x = 1,902.22

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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.