Home / 5,379.02-7,423.68-3,021.15

Finding the Fourth Proportional to 5,379.02, 7,423.68 and 3,021.15

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Solution

The fourth proportional to 5,379.02, 7,423.68 and 3,021.15 is: 4,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.02 : 7,423.68 = 3,021.15 : x
  2. Step 2: Convert to fraction form
    5,379.02/7,423.68 = 3,021.15/x
  3. Step 3: Cross multiply
    5,379.02x = 7,423.68 × 3,021.15
  4. Step 4: Simplify right side
    5,379.02x = 22,428,050.83
  5. Step 5: Solve for x
    x = 22,428,050.83/5,379.02
  6. Step 6: Final answer
    x = 4,169.54

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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.