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Finding the Fourth Proportional to 1,715.02, 2,566.77 and 983.50

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Solution

The fourth proportional to 1,715.02, 2,566.77 and 983.50 is: 1,471.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.02 : 2,566.77 = 983.50 : x
  2. Step 2: Convert to fraction form
    1,715.02/2,566.77 = 983.50/x
  3. Step 3: Cross multiply
    1,715.02x = 2,566.77 × 983.50
  4. Step 4: Simplify right side
    1,715.02x = 2,524,418.30
  5. Step 5: Solve for x
    x = 2,524,418.30/1,715.02
  6. Step 6: Final answer
    x = 1,471.95

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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.