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Finding the Fourth Proportional to 1,260.16, 1,889.66 and 529.34

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Solution

The fourth proportional to 1,260.16, 1,889.66 and 529.34 is: 793.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.16 : 1,889.66 = 529.34 : x
  2. Step 2: Convert to fraction form
    1,260.16/1,889.66 = 529.34/x
  3. Step 3: Cross multiply
    1,260.16x = 1,889.66 × 529.34
  4. Step 4: Simplify right side
    1,260.16x = 1,000,264.50
  5. Step 5: Solve for x
    x = 1,000,264.50/1,260.16
  6. Step 6: Final answer
    x = 793.76

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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.