Home / 2,348.85-3,240.75-1,404.21

Finding the Fourth Proportional to 2,348.85, 3,240.75 and 1,404.21

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Solution

The fourth proportional to 2,348.85, 3,240.75 and 1,404.21 is: 1,937.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,348.85 : 3,240.75 = 1,404.21 : x
  2. Step 2: Convert to fraction form
    2,348.85/3,240.75 = 1,404.21/x
  3. Step 3: Cross multiply
    2,348.85x = 3,240.75 × 1,404.21
  4. Step 4: Simplify right side
    2,348.85x = 4,550,693.56
  5. Step 5: Solve for x
    x = 4,550,693.56/2,348.85
  6. Step 6: Final answer
    x = 1,937.41

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Half scale
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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.