Home / 7,121.35-9,816.96-4,568.86

Finding the Fourth Proportional to 7,121.35, 9,816.96 and 4,568.86

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Solution

The fourth proportional to 7,121.35, 9,816.96 and 4,568.86 is: 6,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.35 : 9,816.96 = 4,568.86 : x
  2. Step 2: Convert to fraction form
    7,121.35/9,816.96 = 4,568.86/x
  3. Step 3: Cross multiply
    7,121.35x = 9,816.96 × 4,568.86
  4. Step 4: Simplify right side
    7,121.35x = 44,852,315.87
  5. Step 5: Solve for x
    x = 44,852,315.87/7,121.35
  6. Step 6: Final answer
    x = 6,298.29

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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.