Home / 6,513.91-8,989.14-3,529.66

Finding the Fourth Proportional to 6,513.91, 8,989.14 and 3,529.66

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Solution

The fourth proportional to 6,513.91, 8,989.14 and 3,529.66 is: 4,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.91 : 8,989.14 = 3,529.66 : x
  2. Step 2: Convert to fraction form
    6,513.91/8,989.14 = 3,529.66/x
  3. Step 3: Cross multiply
    6,513.91x = 8,989.14 × 3,529.66
  4. Step 4: Simplify right side
    6,513.91x = 31,728,607.89
  5. Step 5: Solve for x
    x = 31,728,607.89/6,513.91
  6. Step 6: Final answer
    x = 4,870.90

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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.