Home / 2,656.62-3,983.67-1,561.32

Finding the Fourth Proportional to 2,656.62, 3,983.67 and 1,561.32

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Solution

The fourth proportional to 2,656.62, 3,983.67 and 1,561.32 is: 2,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656.62 : 3,983.67 = 1,561.32 : x
  2. Step 2: Convert to fraction form
    2,656.62/3,983.67 = 1,561.32/x
  3. Step 3: Cross multiply
    2,656.62x = 3,983.67 × 1,561.32
  4. Step 4: Simplify right side
    2,656.62x = 6,219,783.64
  5. Step 5: Solve for x
    x = 6,219,783.64/2,656.62
  6. Step 6: Final answer
    x = 2,341.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.