Home / 2,939.18-4,442.09-2,888.15

Finding the Fourth Proportional to 2,939.18, 4,442.09 and 2,888.15

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Solution

The fourth proportional to 2,939.18, 4,442.09 and 2,888.15 is: 4,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.18 : 4,442.09 = 2,888.15 : x
  2. Step 2: Convert to fraction form
    2,939.18/4,442.09 = 2,888.15/x
  3. Step 3: Cross multiply
    2,939.18x = 4,442.09 × 2,888.15
  4. Step 4: Simplify right side
    2,939.18x = 12,829,385.58
  5. Step 5: Solve for x
    x = 12,829,385.58/2,939.18
  6. Step 6: Final answer
    x = 4,364.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.