Home / 5,274.37-7,278.77-2,884.45

Finding the Fourth Proportional to 5,274.37, 7,278.77 and 2,884.45

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Solution

The fourth proportional to 5,274.37, 7,278.77 and 2,884.45 is: 3,980.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.37 : 7,278.77 = 2,884.45 : x
  2. Step 2: Convert to fraction form
    5,274.37/7,278.77 = 2,884.45/x
  3. Step 3: Cross multiply
    5,274.37x = 7,278.77 × 2,884.45
  4. Step 4: Simplify right side
    5,274.37x = 20,995,248.13
  5. Step 5: Solve for x
    x = 20,995,248.13/5,274.37
  6. Step 6: Final answer
    x = 3,980.62

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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.