Home / 7,065.40-10,603.37-2,691.40

Finding the Fourth Proportional to 7,065.40, 10,603.37 and 2,691.40

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Solution

The fourth proportional to 7,065.40, 10,603.37 and 2,691.40 is: 4,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.40 : 10,603.37 = 2,691.40 : x
  2. Step 2: Convert to fraction form
    7,065.40/10,603.37 = 2,691.40/x
  3. Step 3: Cross multiply
    7,065.40x = 10,603.37 × 2,691.40
  4. Step 4: Simplify right side
    7,065.40x = 28,537,896.56
  5. Step 5: Solve for x
    x = 28,537,896.56/7,065.40
  6. Step 6: Final answer
    x = 4,039.11

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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.