Home / 5,253.12-7,880.40-1,789.44

Finding the Fourth Proportional to 5,253.12, 7,880.40 and 1,789.44

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Solution

The fourth proportional to 5,253.12, 7,880.40 and 1,789.44 is: 2,684.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.12 : 7,880.40 = 1,789.44 : x
  2. Step 2: Convert to fraction form
    5,253.12/7,880.40 = 1,789.44/x
  3. Step 3: Cross multiply
    5,253.12x = 7,880.40 × 1,789.44
  4. Step 4: Simplify right side
    5,253.12x = 14,101,502.98
  5. Step 5: Solve for x
    x = 14,101,502.98/5,253.12
  6. Step 6: Final answer
    x = 2,684.41

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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.