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Finding the Fourth Proportional to 1,777.52, 2,666.32 and 1,047.62

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Solution

The fourth proportional to 1,777.52, 2,666.32 and 1,047.62 is: 1,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.52 : 2,666.32 = 1,047.62 : x
  2. Step 2: Convert to fraction form
    1,777.52/2,666.32 = 1,047.62/x
  3. Step 3: Cross multiply
    1,777.52x = 2,666.32 × 1,047.62
  4. Step 4: Simplify right side
    1,777.52x = 2,793,290.16
  5. Step 5: Solve for x
    x = 2,793,290.16/1,777.52
  6. Step 6: Final answer
    x = 1,571.45

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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.