Home / 5,148.68-7,722.69-2,515.16

Finding the Fourth Proportional to 5,148.68, 7,722.69 and 2,515.16

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Solution

The fourth proportional to 5,148.68, 7,722.69 and 2,515.16 is: 3,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.68 : 7,722.69 = 2,515.16 : x
  2. Step 2: Convert to fraction form
    5,148.68/7,722.69 = 2,515.16/x
  3. Step 3: Cross multiply
    5,148.68x = 7,722.69 × 2,515.16
  4. Step 4: Simplify right side
    5,148.68x = 19,423,762.37
  5. Step 5: Solve for x
    x = 19,423,762.37/5,148.68
  6. Step 6: Final answer
    x = 3,772.57

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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.