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Finding the Fourth Proportional to 1,700.60, 2,550.93 and 660.49

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Solution

The fourth proportional to 1,700.60, 2,550.93 and 660.49 is: 990.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.60 : 2,550.93 = 660.49 : x
  2. Step 2: Convert to fraction form
    1,700.60/2,550.93 = 660.49/x
  3. Step 3: Cross multiply
    1,700.60x = 2,550.93 × 660.49
  4. Step 4: Simplify right side
    1,700.60x = 1,684,863.76
  5. Step 5: Solve for x
    x = 1,684,863.76/1,700.60
  6. Step 6: Final answer
    x = 990.75

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1.5x scale

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.