Home / 5,621.05-7,754.56-3,381.64

Finding the Fourth Proportional to 5,621.05, 7,754.56 and 3,381.64

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Solution

The fourth proportional to 5,621.05, 7,754.56 and 3,381.64 is: 4,665.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.05 : 7,754.56 = 3,381.64 : x
  2. Step 2: Convert to fraction form
    5,621.05/7,754.56 = 3,381.64/x
  3. Step 3: Cross multiply
    5,621.05x = 7,754.56 × 3,381.64
  4. Step 4: Simplify right side
    5,621.05x = 26,223,130.28
  5. Step 5: Solve for x
    x = 26,223,130.28/5,621.05
  6. Step 6: Final answer
    x = 4,665.17

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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.