Home / 5,173.92-7,140-2,816.05

Finding the Fourth Proportional to 5,173.92, 7,140 and 2,816.05

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Solution

The fourth proportional to 5,173.92, 7,140 and 2,816.05 is: 3,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.92 : 7,140 = 2,816.05 : x
  2. Step 2: Convert to fraction form
    5,173.92/7,140 = 2,816.05/x
  3. Step 3: Cross multiply
    5,173.92x = 7,140 × 2,816.05
  4. Step 4: Simplify right side
    5,173.92x = 20,106,597
  5. Step 5: Solve for x
    x = 20,106,597/5,173.92
  6. Step 6: Final answer
    x = 3,886.14

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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.