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Finding the Fourth Proportional to 1,767.55, 2,651.32 and 469.02

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Solution

The fourth proportional to 1,767.55, 2,651.32 and 469.02 is: 703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.55 : 2,651.32 = 469.02 : x
  2. Step 2: Convert to fraction form
    1,767.55/2,651.32 = 469.02/x
  3. Step 3: Cross multiply
    1,767.55x = 2,651.32 × 469.02
  4. Step 4: Simplify right side
    1,767.55x = 1,243,522.11
  5. Step 5: Solve for x
    x = 1,243,522.11/1,767.55
  6. Step 6: Final answer
    x = 703.53

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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.