Home / 7,316.87-10,975.91-2,386.40

Finding the Fourth Proportional to 7,316.87, 10,975.91 and 2,386.40

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Solution

The fourth proportional to 7,316.87, 10,975.91 and 2,386.40 is: 3,579.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.87 : 10,975.91 = 2,386.40 : x
  2. Step 2: Convert to fraction form
    7,316.87/10,975.91 = 2,386.40/x
  3. Step 3: Cross multiply
    7,316.87x = 10,975.91 × 2,386.40
  4. Step 4: Simplify right side
    7,316.87x = 26,192,844.81
  5. Step 5: Solve for x
    x = 26,192,844.81/7,316.87
  6. Step 6: Final answer
    x = 3,579.79

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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.