Home / 4,639.05-6,983.87-4,230.81

Finding the Fourth Proportional to 4,639.05, 6,983.87 and 4,230.81

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Solution

The fourth proportional to 4,639.05, 6,983.87 and 4,230.81 is: 6,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,639.05 : 6,983.87 = 4,230.81 : x
  2. Step 2: Convert to fraction form
    4,639.05/6,983.87 = 4,230.81/x
  3. Step 3: Cross multiply
    4,639.05x = 6,983.87 × 4,230.81
  4. Step 4: Simplify right side
    4,639.05x = 29,547,405.88
  5. Step 5: Solve for x
    x = 29,547,405.88/4,639.05
  6. Step 6: Final answer
    x = 6,369.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.