Home / 7,296.90-10,939.35-3,140.10

Finding the Fourth Proportional to 7,296.90, 10,939.35 and 3,140.10

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Solution

The fourth proportional to 7,296.90, 10,939.35 and 3,140.10 is: 4,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,296.90 : 10,939.35 = 3,140.10 : x
  2. Step 2: Convert to fraction form
    7,296.90/10,939.35 = 3,140.10/x
  3. Step 3: Cross multiply
    7,296.90x = 10,939.35 × 3,140.10
  4. Step 4: Simplify right side
    7,296.90x = 34,350,652.94
  5. Step 5: Solve for x
    x = 34,350,652.94/7,296.90
  6. Step 6: Final answer
    x = 4,707.57

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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.