Home / 6,939.35-10,402.19-2,991.51

Finding the Fourth Proportional to 6,939.35, 10,402.19 and 2,991.51

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Solution

The fourth proportional to 6,939.35, 10,402.19 and 2,991.51 is: 4,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.35 : 10,402.19 = 2,991.51 : x
  2. Step 2: Convert to fraction form
    6,939.35/10,402.19 = 2,991.51/x
  3. Step 3: Cross multiply
    6,939.35x = 10,402.19 × 2,991.51
  4. Step 4: Simplify right side
    6,939.35x = 31,118,255.41
  5. Step 5: Solve for x
    x = 31,118,255.41/6,939.35
  6. Step 6: Final answer
    x = 4,484.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.