Home / 7,140.36-10,691.91-5,746.08

Finding the Fourth Proportional to 7,140.36, 10,691.91 and 5,746.08

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Solution

The fourth proportional to 7,140.36, 10,691.91 and 5,746.08 is: 8,604.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.36 : 10,691.91 = 5,746.08 : x
  2. Step 2: Convert to fraction form
    7,140.36/10,691.91 = 5,746.08/x
  3. Step 3: Cross multiply
    7,140.36x = 10,691.91 × 5,746.08
  4. Step 4: Simplify right side
    7,140.36x = 61,436,570.21
  5. Step 5: Solve for x
    x = 61,436,570.21/7,140.36
  6. Step 6: Final answer
    x = 8,604.13

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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.