Home / 6,940.16-10,405.37-2,557.05

Finding the Fourth Proportional to 6,940.16, 10,405.37 and 2,557.05

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Solution

The fourth proportional to 6,940.16, 10,405.37 and 2,557.05 is: 3,833.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.16 : 10,405.37 = 2,557.05 : x
  2. Step 2: Convert to fraction form
    6,940.16/10,405.37 = 2,557.05/x
  3. Step 3: Cross multiply
    6,940.16x = 10,405.37 × 2,557.05
  4. Step 4: Simplify right side
    6,940.16x = 26,607,038.57
  5. Step 5: Solve for x
    x = 26,607,038.57/6,940.16
  6. Step 6: Final answer
    x = 3,833.78

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1.5x scale

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.