Home / 4,146.21-5,721.30-2,378.39

Finding the Fourth Proportional to 4,146.21, 5,721.30 and 2,378.39

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Solution

The fourth proportional to 4,146.21, 5,721.30 and 2,378.39 is: 3,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,146.21 : 5,721.30 = 2,378.39 : x
  2. Step 2: Convert to fraction form
    4,146.21/5,721.30 = 2,378.39/x
  3. Step 3: Cross multiply
    4,146.21x = 5,721.30 × 2,378.39
  4. Step 4: Simplify right side
    4,146.21x = 13,607,454.10
  5. Step 5: Solve for x
    x = 13,607,454.10/4,146.21
  6. Step 6: Final answer
    x = 3,281.90

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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.