Home / 2,869.34-4,296.60-1,990.56

Finding the Fourth Proportional to 2,869.34, 4,296.60 and 1,990.56

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Solution

The fourth proportional to 2,869.34, 4,296.60 and 1,990.56 is: 2,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.34 : 4,296.60 = 1,990.56 : x
  2. Step 2: Convert to fraction form
    2,869.34/4,296.60 = 1,990.56/x
  3. Step 3: Cross multiply
    2,869.34x = 4,296.60 × 1,990.56
  4. Step 4: Simplify right side
    2,869.34x = 8,552,640.10
  5. Step 5: Solve for x
    x = 8,552,640.10/2,869.34
  6. Step 6: Final answer
    x = 2,980.70

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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.