Home / 5,622.80-7,760.06-3,385.40

Finding the Fourth Proportional to 5,622.80, 7,760.06 and 3,385.40

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Solution

The fourth proportional to 5,622.80, 7,760.06 and 3,385.40 is: 4,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.80 : 7,760.06 = 3,385.40 : x
  2. Step 2: Convert to fraction form
    5,622.80/7,760.06 = 3,385.40/x
  3. Step 3: Cross multiply
    5,622.80x = 7,760.06 × 3,385.40
  4. Step 4: Simplify right side
    5,622.80x = 26,270,907.12
  5. Step 5: Solve for x
    x = 26,270,907.12/5,622.80
  6. Step 6: Final answer
    x = 4,672.21

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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.