Home / 6,910.64-10,365.92-1,980.26

Finding the Fourth Proportional to 6,910.64, 10,365.92 and 1,980.26

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Solution

The fourth proportional to 6,910.64, 10,365.92 and 1,980.26 is: 2,970.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,910.64 : 10,365.92 = 1,980.26 : x
  2. Step 2: Convert to fraction form
    6,910.64/10,365.92 = 1,980.26/x
  3. Step 3: Cross multiply
    6,910.64x = 10,365.92 × 1,980.26
  4. Step 4: Simplify right side
    6,910.64x = 20,527,216.74
  5. Step 5: Solve for x
    x = 20,527,216.74/6,910.64
  6. Step 6: Final answer
    x = 2,970.38

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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.