Home / 7,311.16-10,971.60-3,415.87

Finding the Fourth Proportional to 7,311.16, 10,971.60 and 3,415.87

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Solution

The fourth proportional to 7,311.16, 10,971.60 and 3,415.87 is: 5,126.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,311.16 : 10,971.60 = 3,415.87 : x
  2. Step 2: Convert to fraction form
    7,311.16/10,971.60 = 3,415.87/x
  3. Step 3: Cross multiply
    7,311.16x = 10,971.60 × 3,415.87
  4. Step 4: Simplify right side
    7,311.16x = 37,477,559.29
  5. Step 5: Solve for x
    x = 37,477,559.29/7,311.16
  6. Step 6: Final answer
    x = 5,126.08

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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.