Home / 2,975.28-4,465.20-1,245.12

Finding the Fourth Proportional to 2,975.28, 4,465.20 and 1,245.12

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Solution

The fourth proportional to 2,975.28, 4,465.20 and 1,245.12 is: 1,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.28 : 4,465.20 = 1,245.12 : x
  2. Step 2: Convert to fraction form
    2,975.28/4,465.20 = 1,245.12/x
  3. Step 3: Cross multiply
    2,975.28x = 4,465.20 × 1,245.12
  4. Step 4: Simplify right side
    2,975.28x = 5,559,709.82
  5. Step 5: Solve for x
    x = 5,559,709.82/2,975.28
  6. Step 6: Final answer
    x = 1,868.63

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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.