Home / 5,423.55-7,483.66-3,185.21

Finding the Fourth Proportional to 5,423.55, 7,483.66 and 3,185.21

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Solution

The fourth proportional to 5,423.55, 7,483.66 and 3,185.21 is: 4,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.55 : 7,483.66 = 3,185.21 : x
  2. Step 2: Convert to fraction form
    5,423.55/7,483.66 = 3,185.21/x
  3. Step 3: Cross multiply
    5,423.55x = 7,483.66 × 3,185.21
  4. Step 4: Simplify right side
    5,423.55x = 23,837,012.74
  5. Step 5: Solve for x
    x = 23,837,012.74/5,423.55
  6. Step 6: Final answer
    x = 4,395.10

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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.