Home / 5,405.54-7,457.40-3,910.14

Finding the Fourth Proportional to 5,405.54, 7,457.40 and 3,910.14

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Solution

The fourth proportional to 5,405.54, 7,457.40 and 3,910.14 is: 5,394.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.54 : 7,457.40 = 3,910.14 : x
  2. Step 2: Convert to fraction form
    5,405.54/7,457.40 = 3,910.14/x
  3. Step 3: Cross multiply
    5,405.54x = 7,457.40 × 3,910.14
  4. Step 4: Simplify right side
    5,405.54x = 29,159,478.04
  5. Step 5: Solve for x
    x = 29,159,478.04/5,405.54
  6. Step 6: Final answer
    x = 5,394.37

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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.