Home / 5,281.23-7,285.31-4,284.77

Finding the Fourth Proportional to 5,281.23, 7,285.31 and 4,284.77

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Solution

The fourth proportional to 5,281.23, 7,285.31 and 4,284.77 is: 5,910.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.23 : 7,285.31 = 4,284.77 : x
  2. Step 2: Convert to fraction form
    5,281.23/7,285.31 = 4,284.77/x
  3. Step 3: Cross multiply
    5,281.23x = 7,285.31 × 4,284.77
  4. Step 4: Simplify right side
    5,281.23x = 31,215,835.95
  5. Step 5: Solve for x
    x = 31,215,835.95/5,281.23
  6. Step 6: Final answer
    x = 5,910.71

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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.