Home / 7,070.18-9,756.52-3,926.57

Finding the Fourth Proportional to 7,070.18, 9,756.52 and 3,926.57

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Solution

The fourth proportional to 7,070.18, 9,756.52 and 3,926.57 is: 5,418.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,070.18 : 9,756.52 = 3,926.57 : x
  2. Step 2: Convert to fraction form
    7,070.18/9,756.52 = 3,926.57/x
  3. Step 3: Cross multiply
    7,070.18x = 9,756.52 × 3,926.57
  4. Step 4: Simplify right side
    7,070.18x = 38,309,600.14
  5. Step 5: Solve for x
    x = 38,309,600.14/7,070.18
  6. Step 6: Final answer
    x = 5,418.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.