Home / 2,785.28-4,177.23-1,225.67

Finding the Fourth Proportional to 2,785.28, 4,177.23 and 1,225.67

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Solution

The fourth proportional to 2,785.28, 4,177.23 and 1,225.67 is: 1,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.28 : 4,177.23 = 1,225.67 : x
  2. Step 2: Convert to fraction form
    2,785.28/4,177.23 = 1,225.67/x
  3. Step 3: Cross multiply
    2,785.28x = 4,177.23 × 1,225.67
  4. Step 4: Simplify right side
    2,785.28x = 5,119,915.94
  5. Step 5: Solve for x
    x = 5,119,915.94/2,785.28
  6. Step 6: Final answer
    x = 1,838.21

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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.