Home / 7,281.13-10,047.96-3,969.13

Finding the Fourth Proportional to 7,281.13, 10,047.96 and 3,969.13

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Solution

The fourth proportional to 7,281.13, 10,047.96 and 3,969.13 is: 5,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,281.13 : 10,047.96 = 3,969.13 : x
  2. Step 2: Convert to fraction form
    7,281.13/10,047.96 = 3,969.13/x
  3. Step 3: Cross multiply
    7,281.13x = 10,047.96 × 3,969.13
  4. Step 4: Simplify right side
    7,281.13x = 39,881,659.47
  5. Step 5: Solve for x
    x = 39,881,659.47/7,281.13
  6. Step 6: Final answer
    x = 5,477.40

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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.