Home / 5,217.12-7,826.40-1,754

Finding the Fourth Proportional to 5,217.12, 7,826.40 and 1,754

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Solution

The fourth proportional to 5,217.12, 7,826.40 and 1,754 is: 2,631.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.12 : 7,826.40 = 1,754 : x
  2. Step 2: Convert to fraction form
    5,217.12/7,826.40 = 1,754/x
  3. Step 3: Cross multiply
    5,217.12x = 7,826.40 × 1,754
  4. Step 4: Simplify right side
    5,217.12x = 13,727,505.60
  5. Step 5: Solve for x
    x = 13,727,505.60/5,217.12
  6. Step 6: Final answer
    x = 2,631.24

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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.