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Finding the Fourth Proportional to 1,693.75, 2,540.64 and 598.30

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Solution

The fourth proportional to 1,693.75, 2,540.64 and 598.30 is: 897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.75 : 2,540.64 = 598.30 : x
  2. Step 2: Convert to fraction form
    1,693.75/2,540.64 = 598.30/x
  3. Step 3: Cross multiply
    1,693.75x = 2,540.64 × 598.30
  4. Step 4: Simplify right side
    1,693.75x = 1,520,064.91
  5. Step 5: Solve for x
    x = 1,520,064.91/1,693.75
  6. Step 6: Final answer
    x = 897.46

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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.