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Finding the Fourth Proportional to 1,700.30, 2,346.90 and 1,102.78

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Solution

The fourth proportional to 1,700.30, 2,346.90 and 1,102.78 is: 1,522.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.30 : 2,346.90 = 1,102.78 : x
  2. Step 2: Convert to fraction form
    1,700.30/2,346.90 = 1,102.78/x
  3. Step 3: Cross multiply
    1,700.30x = 2,346.90 × 1,102.78
  4. Step 4: Simplify right side
    1,700.30x = 2,588,114.38
  5. Step 5: Solve for x
    x = 2,588,114.38/1,700.30
  6. Step 6: Final answer
    x = 1,522.15

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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.