Home / 5,421.16-7,483.64-3,183.18

Finding the Fourth Proportional to 5,421.16, 7,483.64 and 3,183.18

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Solution

The fourth proportional to 5,421.16, 7,483.64 and 3,183.18 is: 4,394.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.16 : 7,483.64 = 3,183.18 : x
  2. Step 2: Convert to fraction form
    5,421.16/7,483.64 = 3,183.18/x
  3. Step 3: Cross multiply
    5,421.16x = 7,483.64 × 3,183.18
  4. Step 4: Simplify right side
    5,421.16x = 23,821,729.20
  5. Step 5: Solve for x
    x = 23,821,729.20/5,421.16
  6. Step 6: Final answer
    x = 4,394.21

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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.