Home / 1,013.16-1,519.80-525.60

Finding the Fourth Proportional to 1,013.16, 1,519.80 and 525.60

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Solution

The fourth proportional to 1,013.16, 1,519.80 and 525.60 is: 788.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.16 : 1,519.80 = 525.60 : x
  2. Step 2: Convert to fraction form
    1,013.16/1,519.80 = 525.60/x
  3. Step 3: Cross multiply
    1,013.16x = 1,519.80 × 525.60
  4. Step 4: Simplify right side
    1,013.16x = 798,806.88
  5. Step 5: Solve for x
    x = 798,806.88/1,013.16
  6. Step 6: Final answer
    x = 788.43

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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.