Home / 5,173.94-7,140.22-2,816.16

Finding the Fourth Proportional to 5,173.94, 7,140.22 and 2,816.16

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Solution

The fourth proportional to 5,173.94, 7,140.22 and 2,816.16 is: 3,886.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.94 : 7,140.22 = 2,816.16 : x
  2. Step 2: Convert to fraction form
    5,173.94/7,140.22 = 2,816.16/x
  3. Step 3: Cross multiply
    5,173.94x = 7,140.22 × 2,816.16
  4. Step 4: Simplify right side
    5,173.94x = 20,108,001.96
  5. Step 5: Solve for x
    x = 20,108,001.96/5,173.94
  6. Step 6: Final answer
    x = 3,886.40

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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.