Home / 5,314.87-7,970.55-1,615.96

Finding the Fourth Proportional to 5,314.87, 7,970.55 and 1,615.96

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Solution

The fourth proportional to 5,314.87, 7,970.55 and 1,615.96 is: 2,423.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,314.87 : 7,970.55 = 1,615.96 : x
  2. Step 2: Convert to fraction form
    5,314.87/7,970.55 = 1,615.96/x
  3. Step 3: Cross multiply
    5,314.87x = 7,970.55 × 1,615.96
  4. Step 4: Simplify right side
    5,314.87x = 12,880,089.98
  5. Step 5: Solve for x
    x = 12,880,089.98/5,314.87
  6. Step 6: Final answer
    x = 2,423.41

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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.