Home / 2,990.38-4,485.56-2,468.13

Finding the Fourth Proportional to 2,990.38, 4,485.56 and 2,468.13

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Solution

The fourth proportional to 2,990.38, 4,485.56 and 2,468.13 is: 3,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.38 : 4,485.56 = 2,468.13 : x
  2. Step 2: Convert to fraction form
    2,990.38/4,485.56 = 2,468.13/x
  3. Step 3: Cross multiply
    2,990.38x = 4,485.56 × 2,468.13
  4. Step 4: Simplify right side
    2,990.38x = 11,070,951.37
  5. Step 5: Solve for x
    x = 11,070,951.37/2,990.38
  6. Step 6: Final answer
    x = 3,702.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.