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Finding the Fourth Proportional to 5,650.80, 7,800.50 and 3,412.22

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Solution

The fourth proportional to 5,650.80, 7,800.50 and 3,412.22 is: 4,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,650.80 : 7,800.50 = 3,412.22 : x
  2. Step 2: Convert to fraction form
    5,650.80/7,800.50 = 3,412.22/x
  3. Step 3: Cross multiply
    5,650.80x = 7,800.50 × 3,412.22
  4. Step 4: Simplify right side
    5,650.80x = 26,616,966.05
  5. Step 5: Solve for x
    x = 26,616,966.05/5,650.80
  6. Step 6: Final answer
    x = 4,710.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.