Home / 7,378.28-10,181.90-4,021.13

Finding the Fourth Proportional to 7,378.28, 10,181.90 and 4,021.13

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Solution

The fourth proportional to 7,378.28, 10,181.90 and 4,021.13 is: 5,549.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.28 : 10,181.90 = 4,021.13 : x
  2. Step 2: Convert to fraction form
    7,378.28/10,181.90 = 4,021.13/x
  3. Step 3: Cross multiply
    7,378.28x = 10,181.90 × 4,021.13
  4. Step 4: Simplify right side
    7,378.28x = 40,942,672.53
  5. Step 5: Solve for x
    x = 40,942,672.53/7,378.28
  6. Step 6: Final answer
    x = 5,549.08

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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.