Home / 7,297.47-10,937.79-3,131.28

Finding the Fourth Proportional to 7,297.47, 10,937.79 and 3,131.28

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Solution

The fourth proportional to 7,297.47, 10,937.79 and 3,131.28 is: 4,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,297.47 : 10,937.79 = 3,131.28 : x
  2. Step 2: Convert to fraction form
    7,297.47/10,937.79 = 3,131.28/x
  3. Step 3: Cross multiply
    7,297.47x = 10,937.79 × 3,131.28
  4. Step 4: Simplify right side
    7,297.47x = 34,249,283.07
  5. Step 5: Solve for x
    x = 34,249,283.07/7,297.47
  6. Step 6: Final answer
    x = 4,693.31

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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.