Home / 1,615.24-2,423.07-519.22

Finding the Fourth Proportional to 1,615.24, 2,423.07 and 519.22

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Solution

The fourth proportional to 1,615.24, 2,423.07 and 519.22 is: 778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.24 : 2,423.07 = 519.22 : x
  2. Step 2: Convert to fraction form
    1,615.24/2,423.07 = 519.22/x
  3. Step 3: Cross multiply
    1,615.24x = 2,423.07 × 519.22
  4. Step 4: Simplify right side
    1,615.24x = 1,258,106.41
  5. Step 5: Solve for x
    x = 1,258,106.41/1,615.24
  6. Step 6: Final answer
    x = 778.90

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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.