Home / 6,320.24-8,721.87-3,487.64

Finding the Fourth Proportional to 6,320.24, 8,721.87 and 3,487.64

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Solution

The fourth proportional to 6,320.24, 8,721.87 and 3,487.64 is: 4,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320.24 : 8,721.87 = 3,487.64 : x
  2. Step 2: Convert to fraction form
    6,320.24/8,721.87 = 3,487.64/x
  3. Step 3: Cross multiply
    6,320.24x = 8,721.87 × 3,487.64
  4. Step 4: Simplify right side
    6,320.24x = 30,418,742.69
  5. Step 5: Solve for x
    x = 30,418,742.69/6,320.24
  6. Step 6: Final answer
    x = 4,812.91

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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.