Home / 5,379.02-7,423.24-3,140.54

Finding the Fourth Proportional to 5,379.02, 7,423.24 and 3,140.54

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Solution

The fourth proportional to 5,379.02, 7,423.24 and 3,140.54 is: 4,334.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.02 : 7,423.24 = 3,140.54 : x
  2. Step 2: Convert to fraction form
    5,379.02/7,423.24 = 3,140.54/x
  3. Step 3: Cross multiply
    5,379.02x = 7,423.24 × 3,140.54
  4. Step 4: Simplify right side
    5,379.02x = 23,312,982.15
  5. Step 5: Solve for x
    x = 23,312,982.15/5,379.02
  6. Step 6: Final answer
    x = 4,334.06

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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.