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Finding the Fourth Proportional to 1,700.51, 2,551.73 and 920.52

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Solution

The fourth proportional to 1,700.51, 2,551.73 and 920.52 is: 1,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700.51 : 2,551.73 = 920.52 : x
  2. Step 2: Convert to fraction form
    1,700.51/2,551.73 = 920.52/x
  3. Step 3: Cross multiply
    1,700.51x = 2,551.73 × 920.52
  4. Step 4: Simplify right side
    1,700.51x = 2,348,913.90
  5. Step 5: Solve for x
    x = 2,348,913.90/1,700.51
  6. Step 6: Final answer
    x = 1,381.30

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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.