Home / 3,339.10-4,607.13-2,158.75

Finding the Fourth Proportional to 3,339.10, 4,607.13 and 2,158.75

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Solution

The fourth proportional to 3,339.10, 4,607.13 and 2,158.75 is: 2,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.10 : 4,607.13 = 2,158.75 : x
  2. Step 2: Convert to fraction form
    3,339.10/4,607.13 = 2,158.75/x
  3. Step 3: Cross multiply
    3,339.10x = 4,607.13 × 2,158.75
  4. Step 4: Simplify right side
    3,339.10x = 9,945,641.89
  5. Step 5: Solve for x
    x = 9,945,641.89/3,339.10
  6. Step 6: Final answer
    x = 2,978.54

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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.