Home / 3,864.21-5,332.04-2,162.70

Finding the Fourth Proportional to 3,864.21, 5,332.04 and 2,162.70

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Solution

The fourth proportional to 3,864.21, 5,332.04 and 2,162.70 is: 2,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.21 : 5,332.04 = 2,162.70 : x
  2. Step 2: Convert to fraction form
    3,864.21/5,332.04 = 2,162.70/x
  3. Step 3: Cross multiply
    3,864.21x = 5,332.04 × 2,162.70
  4. Step 4: Simplify right side
    3,864.21x = 11,531,602.91
  5. Step 5: Solve for x
    x = 11,531,602.91/3,864.21
  6. Step 6: Final answer
    x = 2,984.21

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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.