Home / 5,119.81-7,639.77-4,568.20

Finding the Fourth Proportional to 5,119.81, 7,639.77 and 4,568.20

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Solution

The fourth proportional to 5,119.81, 7,639.77 and 4,568.20 is: 6,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.81 : 7,639.77 = 4,568.20 : x
  2. Step 2: Convert to fraction form
    5,119.81/7,639.77 = 4,568.20/x
  3. Step 3: Cross multiply
    5,119.81x = 7,639.77 × 4,568.20
  4. Step 4: Simplify right side
    5,119.81x = 34,899,997.31
  5. Step 5: Solve for x
    x = 34,899,997.31/5,119.81
  6. Step 6: Final answer
    x = 6,816.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.