Home / 6,985.10-9,640.26-4,001.88

Finding the Fourth Proportional to 6,985.10, 9,640.26 and 4,001.88

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Solution

The fourth proportional to 6,985.10, 9,640.26 and 4,001.88 is: 5,523.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.10 : 9,640.26 = 4,001.88 : x
  2. Step 2: Convert to fraction form
    6,985.10/9,640.26 = 4,001.88/x
  3. Step 3: Cross multiply
    6,985.10x = 9,640.26 × 4,001.88
  4. Step 4: Simplify right side
    6,985.10x = 38,579,163.69
  5. Step 5: Solve for x
    x = 38,579,163.69/6,985.10
  6. Step 6: Final answer
    x = 5,523.07

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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.