Home / 5,720.87-7,898.37-4,391.93

Finding the Fourth Proportional to 5,720.87, 7,898.37 and 4,391.93

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Solution

The fourth proportional to 5,720.87, 7,898.37 and 4,391.93 is: 6,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720.87 : 7,898.37 = 4,391.93 : x
  2. Step 2: Convert to fraction form
    5,720.87/7,898.37 = 4,391.93/x
  3. Step 3: Cross multiply
    5,720.87x = 7,898.37 × 4,391.93
  4. Step 4: Simplify right side
    5,720.87x = 34,689,088.15
  5. Step 5: Solve for x
    x = 34,689,088.15/5,720.87
  6. Step 6: Final answer
    x = 6,063.60

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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.