Home / 5,173.94-7,140.21-2,816.17

Finding the Fourth Proportional to 5,173.94, 7,140.21 and 2,816.17

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Solution

The fourth proportional to 5,173.94, 7,140.21 and 2,816.17 is: 3,886.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,173.94 : 7,140.21 = 2,816.17 : x
  2. Step 2: Convert to fraction form
    5,173.94/7,140.21 = 2,816.17/x
  3. Step 3: Cross multiply
    5,173.94x = 7,140.21 × 2,816.17
  4. Step 4: Simplify right side
    5,173.94x = 20,108,045.20
  5. Step 5: Solve for x
    x = 20,108,045.20/5,173.94
  6. Step 6: Final answer
    x = 3,886.41

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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.