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Finding the Fourth Proportional to 1,157.35, 1,597.13 and 633.38

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Solution

The fourth proportional to 1,157.35, 1,597.13 and 633.38 is: 874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.35 : 1,597.13 = 633.38 : x
  2. Step 2: Convert to fraction form
    1,157.35/1,597.13 = 633.38/x
  3. Step 3: Cross multiply
    1,157.35x = 1,597.13 × 633.38
  4. Step 4: Simplify right side
    1,157.35x = 1,011,582.21
  5. Step 5: Solve for x
    x = 1,011,582.21/1,157.35
  6. Step 6: Final answer
    x = 874.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.