Home / 5,407.31-7,461.38-3,168.68

Finding the Fourth Proportional to 5,407.31, 7,461.38 and 3,168.68

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Solution

The fourth proportional to 5,407.31, 7,461.38 and 3,168.68 is: 4,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.31 : 7,461.38 = 3,168.68 : x
  2. Step 2: Convert to fraction form
    5,407.31/7,461.38 = 3,168.68/x
  3. Step 3: Cross multiply
    5,407.31x = 7,461.38 × 3,168.68
  4. Step 4: Simplify right side
    5,407.31x = 23,642,696.19
  5. Step 5: Solve for x
    x = 23,642,696.19/5,407.31
  6. Step 6: Final answer
    x = 4,372.36

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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.