Home / 5,211.14-7,816.84-1,513.40

Finding the Fourth Proportional to 5,211.14, 7,816.84 and 1,513.40

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Solution

The fourth proportional to 5,211.14, 7,816.84 and 1,513.40 is: 2,270.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.14 : 7,816.84 = 1,513.40 : x
  2. Step 2: Convert to fraction form
    5,211.14/7,816.84 = 1,513.40/x
  3. Step 3: Cross multiply
    5,211.14x = 7,816.84 × 1,513.40
  4. Step 4: Simplify right side
    5,211.14x = 11,830,034.42
  5. Step 5: Solve for x
    x = 11,830,034.42/5,211.14
  6. Step 6: Final answer
    x = 2,270.14

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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.