Home / 5,023.28-6,931.94-2,785.20

Finding the Fourth Proportional to 5,023.28, 6,931.94 and 2,785.20

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Solution

The fourth proportional to 5,023.28, 6,931.94 and 2,785.20 is: 3,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,023.28 : 6,931.94 = 2,785.20 : x
  2. Step 2: Convert to fraction form
    5,023.28/6,931.94 = 2,785.20/x
  3. Step 3: Cross multiply
    5,023.28x = 6,931.94 × 2,785.20
  4. Step 4: Simplify right side
    5,023.28x = 19,306,804.63
  5. Step 5: Solve for x
    x = 19,306,804.63/5,023.28
  6. Step 6: Final answer
    x = 3,843.47

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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.