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Finding the Fourth Proportional to 1,773.54, 2,670.17 and 1,385.64

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Solution

The fourth proportional to 1,773.54, 2,670.17 and 1,385.64 is: 2,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.54 : 2,670.17 = 1,385.64 : x
  2. Step 2: Convert to fraction form
    1,773.54/2,670.17 = 1,385.64/x
  3. Step 3: Cross multiply
    1,773.54x = 2,670.17 × 1,385.64
  4. Step 4: Simplify right side
    1,773.54x = 3,699,887.43
  5. Step 5: Solve for x
    x = 3,699,887.43/1,773.54
  6. Step 6: Final answer
    x = 2,086.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.