Home / 5,081.91-7,623.58-1,572.21

Finding the Fourth Proportional to 5,081.91, 7,623.58 and 1,572.21

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Solution

The fourth proportional to 5,081.91, 7,623.58 and 1,572.21 is: 2,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,081.91 : 7,623.58 = 1,572.21 : x
  2. Step 2: Convert to fraction form
    5,081.91/7,623.58 = 1,572.21/x
  3. Step 3: Cross multiply
    5,081.91x = 7,623.58 × 1,572.21
  4. Step 4: Simplify right side
    5,081.91x = 11,985,868.71
  5. Step 5: Solve for x
    x = 11,985,868.71/5,081.91
  6. Step 6: Final answer
    x = 2,358.54

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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.