Home / 5,405.10-7,458.78-3,047.18

Finding the Fourth Proportional to 5,405.10, 7,458.78 and 3,047.18

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Solution

The fourth proportional to 5,405.10, 7,458.78 and 3,047.18 is: 4,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.10 : 7,458.78 = 3,047.18 : x
  2. Step 2: Convert to fraction form
    5,405.10/7,458.78 = 3,047.18/x
  3. Step 3: Cross multiply
    5,405.10x = 7,458.78 × 3,047.18
  4. Step 4: Simplify right side
    5,405.10x = 22,728,245.24
  5. Step 5: Solve for x
    x = 22,728,245.24/5,405.10
  6. Step 6: Final answer
    x = 4,204.96

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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.