Home / 5,120.85-7,063.95-3,024.57

Finding the Fourth Proportional to 5,120.85, 7,063.95 and 3,024.57

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Solution

The fourth proportional to 5,120.85, 7,063.95 and 3,024.57 is: 4,172.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.85 : 7,063.95 = 3,024.57 : x
  2. Step 2: Convert to fraction form
    5,120.85/7,063.95 = 3,024.57/x
  3. Step 3: Cross multiply
    5,120.85x = 7,063.95 × 3,024.57
  4. Step 4: Simplify right side
    5,120.85x = 21,365,411.25
  5. Step 5: Solve for x
    x = 21,365,411.25/5,120.85
  6. Step 6: Final answer
    x = 4,172.24

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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.