Home / 1,013.09-1,518.26-525.15

Finding the Fourth Proportional to 1,013.09, 1,518.26 and 525.15

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Solution

The fourth proportional to 1,013.09, 1,518.26 and 525.15 is: 787.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013.09 : 1,518.26 = 525.15 : x
  2. Step 2: Convert to fraction form
    1,013.09/1,518.26 = 525.15/x
  3. Step 3: Cross multiply
    1,013.09x = 1,518.26 × 525.15
  4. Step 4: Simplify right side
    1,013.09x = 797,311.61
  5. Step 5: Solve for x
    x = 797,311.61/1,013.09
  6. Step 6: Final answer
    x = 787.01

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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.