Home / 5,694.80-7,858.72-3,210.80

Finding the Fourth Proportional to 5,694.80, 7,858.72 and 3,210.80

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Solution

The fourth proportional to 5,694.80, 7,858.72 and 3,210.80 is: 4,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,694.80 : 7,858.72 = 3,210.80 : x
  2. Step 2: Convert to fraction form
    5,694.80/7,858.72 = 3,210.80/x
  3. Step 3: Cross multiply
    5,694.80x = 7,858.72 × 3,210.80
  4. Step 4: Simplify right side
    5,694.80x = 25,232,778.18
  5. Step 5: Solve for x
    x = 25,232,778.18/5,694.80
  6. Step 6: Final answer
    x = 4,430.85

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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.