Home / 6,295.20-8,686.70-3,642.09

Finding the Fourth Proportional to 6,295.20, 8,686.70 and 3,642.09

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Solution

The fourth proportional to 6,295.20, 8,686.70 and 3,642.09 is: 5,025.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,295.20 : 8,686.70 = 3,642.09 : x
  2. Step 2: Convert to fraction form
    6,295.20/8,686.70 = 3,642.09/x
  3. Step 3: Cross multiply
    6,295.20x = 8,686.70 × 3,642.09
  4. Step 4: Simplify right side
    6,295.20x = 31,637,724.99
  5. Step 5: Solve for x
    x = 31,637,724.99/6,295.20
  6. Step 6: Final answer
    x = 5,025.69

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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.