Home / 5,016.32-6,920.80-2,921.12

Finding the Fourth Proportional to 5,016.32, 6,920.80 and 2,921.12

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Solution

The fourth proportional to 5,016.32, 6,920.80 and 2,921.12 is: 4,030.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,016.32 : 6,920.80 = 2,921.12 : x
  2. Step 2: Convert to fraction form
    5,016.32/6,920.80 = 2,921.12/x
  3. Step 3: Cross multiply
    5,016.32x = 6,920.80 × 2,921.12
  4. Step 4: Simplify right side
    5,016.32x = 20,216,487.30
  5. Step 5: Solve for x
    x = 20,216,487.30/5,016.32
  6. Step 6: Final answer
    x = 4,030.14

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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.