Home / 5,173.61-7,144.64-4,423.21

Finding the Fourth Proportional to 5,173.61, 7,144.64 and 4,423.21

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Solution

The fourth proportional to 5,173.61, 7,144.64 and 4,423.21 is: 6,108.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.61 : 7,144.64 = 4,423.21 : x
  2. Step 2: Convert to fraction form
    5,173.61/7,144.64 = 4,423.21/x
  3. Step 3: Cross multiply
    5,173.61x = 7,144.64 × 4,423.21
  4. Step 4: Simplify right side
    5,173.61x = 31,602,219.70
  5. Step 5: Solve for x
    x = 31,602,219.70/5,173.61
  6. Step 6: Final answer
    x = 6,108.36

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Half scale
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Double scale
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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.