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Finding the Fourth Proportional to 933.12, 1,400.49 and 702.27

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Solution

The fourth proportional to 933.12, 1,400.49 and 702.27 is: 1,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    933.12 : 1,400.49 = 702.27 : x
  2. Step 2: Convert to fraction form
    933.12/1,400.49 = 702.27/x
  3. Step 3: Cross multiply
    933.12x = 1,400.49 × 702.27
  4. Step 4: Simplify right side
    933.12x = 983,522.11
  5. Step 5: Solve for x
    x = 983,522.11/933.12
  6. Step 6: Final answer
    x = 1,054.01

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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.