Home / 6,516.45-8,991.14-3,864.51

Finding the Fourth Proportional to 6,516.45, 8,991.14 and 3,864.51

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Solution

The fourth proportional to 6,516.45, 8,991.14 and 3,864.51 is: 5,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.45 : 8,991.14 = 3,864.51 : x
  2. Step 2: Convert to fraction form
    6,516.45/8,991.14 = 3,864.51/x
  3. Step 3: Cross multiply
    6,516.45x = 8,991.14 × 3,864.51
  4. Step 4: Simplify right side
    6,516.45x = 34,746,331.12
  5. Step 5: Solve for x
    x = 34,746,331.12/6,516.45
  6. Step 6: Final answer
    x = 5,332.10

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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.