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Finding the Fourth Proportional to 2,907.14, 4,361.65 and 933.08

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Solution

The fourth proportional to 2,907.14, 4,361.65 and 933.08 is: 1,399.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.14 : 4,361.65 = 933.08 : x
  2. Step 2: Convert to fraction form
    2,907.14/4,361.65 = 933.08/x
  3. Step 3: Cross multiply
    2,907.14x = 4,361.65 × 933.08
  4. Step 4: Simplify right side
    2,907.14x = 4,069,744.24
  5. Step 5: Solve for x
    x = 4,069,744.24/2,907.14
  6. Step 6: Final answer
    x = 1,399.92

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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.