Home / 7,108.03-10,662-1,913.91

Finding the Fourth Proportional to 7,108.03, 10,662 and 1,913.91

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Solution

The fourth proportional to 7,108.03, 10,662 and 1,913.91 is: 2,870.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.03 : 10,662 = 1,913.91 : x
  2. Step 2: Convert to fraction form
    7,108.03/10,662 = 1,913.91/x
  3. Step 3: Cross multiply
    7,108.03x = 10,662 × 1,913.91
  4. Step 4: Simplify right side
    7,108.03x = 20,406,108.42
  5. Step 5: Solve for x
    x = 20,406,108.42/7,108.03
  6. Step 6: Final answer
    x = 2,870.85

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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.