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Finding the Fourth Proportional to 1,538.80, 2,307.84 and 564.37

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Solution

The fourth proportional to 1,538.80, 2,307.84 and 564.37 is: 846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,538.80 : 2,307.84 = 564.37 : x
  2. Step 2: Convert to fraction form
    1,538.80/2,307.84 = 564.37/x
  3. Step 3: Cross multiply
    1,538.80x = 2,307.84 × 564.37
  4. Step 4: Simplify right side
    1,538.80x = 1,302,475.66
  5. Step 5: Solve for x
    x = 1,302,475.66/1,538.80
  6. Step 6: Final answer
    x = 846.42

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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.