Home / 5,148.99-7,718.86-2,515.01

Finding the Fourth Proportional to 5,148.99, 7,718.86 and 2,515.01

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Solution

The fourth proportional to 5,148.99, 7,718.86 and 2,515.01 is: 3,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.99 : 7,718.86 = 2,515.01 : x
  2. Step 2: Convert to fraction form
    5,148.99/7,718.86 = 2,515.01/x
  3. Step 3: Cross multiply
    5,148.99x = 7,718.86 × 2,515.01
  4. Step 4: Simplify right side
    5,148.99x = 19,412,974.64
  5. Step 5: Solve for x
    x = 19,412,974.64/5,148.99
  6. Step 6: Final answer
    x = 3,770.25

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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.