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Finding the Fourth Proportional to 1,016.21, 1,525.30 and 651.24

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Solution

The fourth proportional to 1,016.21, 1,525.30 and 651.24 is: 977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.21 : 1,525.30 = 651.24 : x
  2. Step 2: Convert to fraction form
    1,016.21/1,525.30 = 651.24/x
  3. Step 3: Cross multiply
    1,016.21x = 1,525.30 × 651.24
  4. Step 4: Simplify right side
    1,016.21x = 993,334.74
  5. Step 5: Solve for x
    x = 993,334.74/1,016.21
  6. Step 6: Final answer
    x = 977.49

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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.