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Finding the Fourth Proportional to 2,259.92, 3,390.48 and 800.10

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Solution

The fourth proportional to 2,259.92, 3,390.48 and 800.10 is: 1,200.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,259.92 : 3,390.48 = 800.10 : x
  2. Step 2: Convert to fraction form
    2,259.92/3,390.48 = 800.10/x
  3. Step 3: Cross multiply
    2,259.92x = 3,390.48 × 800.10
  4. Step 4: Simplify right side
    2,259.92x = 2,712,723.05
  5. Step 5: Solve for x
    x = 2,712,723.05/2,259.92
  6. Step 6: Final answer
    x = 1,200.36

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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.