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Finding the Fourth Proportional to 1,798.92, 2,700.78 and 1,740.60

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Solution

The fourth proportional to 1,798.92, 2,700.78 and 1,740.60 is: 2,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.92 : 2,700.78 = 1,740.60 : x
  2. Step 2: Convert to fraction form
    1,798.92/2,700.78 = 1,740.60/x
  3. Step 3: Cross multiply
    1,798.92x = 2,700.78 × 1,740.60
  4. Step 4: Simplify right side
    1,798.92x = 4,700,977.67
  5. Step 5: Solve for x
    x = 4,700,977.67/1,798.92
  6. Step 6: Final answer
    x = 2,613.22

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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.