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Finding the Fourth Proportional to 2,598.60, 3,897.99 and 650.91

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Solution

The fourth proportional to 2,598.60, 3,897.99 and 650.91 is: 976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,598.60 : 3,897.99 = 650.91 : x
  2. Step 2: Convert to fraction form
    2,598.60/3,897.99 = 650.91/x
  3. Step 3: Cross multiply
    2,598.60x = 3,897.99 × 650.91
  4. Step 4: Simplify right side
    2,598.60x = 2,537,240.67
  5. Step 5: Solve for x
    x = 2,537,240.67/2,598.60
  6. Step 6: Final answer
    x = 976.39

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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.