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Finding the Fourth Proportional to 1,517.58, 2,276.91 and 530.54

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Solution

The fourth proportional to 1,517.58, 2,276.91 and 530.54 is: 795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.58 : 2,276.91 = 530.54 : x
  2. Step 2: Convert to fraction form
    1,517.58/2,276.91 = 530.54/x
  3. Step 3: Cross multiply
    1,517.58x = 2,276.91 × 530.54
  4. Step 4: Simplify right side
    1,517.58x = 1,207,980.45
  5. Step 5: Solve for x
    x = 1,207,980.45/1,517.58
  6. Step 6: Final answer
    x = 795.99

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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.