Home / 4,102.91-5,666.74-2,988.83

Finding the Fourth Proportional to 4,102.91, 5,666.74 and 2,988.83

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Solution

The fourth proportional to 4,102.91, 5,666.74 and 2,988.83 is: 4,128.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.91 : 5,666.74 = 2,988.83 : x
  2. Step 2: Convert to fraction form
    4,102.91/5,666.74 = 2,988.83/x
  3. Step 3: Cross multiply
    4,102.91x = 5,666.74 × 2,988.83
  4. Step 4: Simplify right side
    4,102.91x = 16,936,922.51
  5. Step 5: Solve for x
    x = 16,936,922.51/4,102.91
  6. Step 6: Final answer
    x = 4,128.03

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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.