Home / 6,938.10-10,407.69-2,007.81

Finding the Fourth Proportional to 6,938.10, 10,407.69 and 2,007.81

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Solution

The fourth proportional to 6,938.10, 10,407.69 and 2,007.81 is: 3,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.10 : 10,407.69 = 2,007.81 : x
  2. Step 2: Convert to fraction form
    6,938.10/10,407.69 = 2,007.81/x
  3. Step 3: Cross multiply
    6,938.10x = 10,407.69 × 2,007.81
  4. Step 4: Simplify right side
    6,938.10x = 20,896,664.06
  5. Step 5: Solve for x
    x = 20,896,664.06/6,938.10
  6. Step 6: Final answer
    x = 3,011.87

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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.