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Finding the Fourth Proportional to 6,655.58, 9,983.22 and 1,725.20

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Solution

The fourth proportional to 6,655.58, 9,983.22 and 1,725.20 is: 2,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.58 : 9,983.22 = 1,725.20 : x
  2. Step 2: Convert to fraction form
    6,655.58/9,983.22 = 1,725.20/x
  3. Step 3: Cross multiply
    6,655.58x = 9,983.22 × 1,725.20
  4. Step 4: Simplify right side
    6,655.58x = 17,223,051.14
  5. Step 5: Solve for x
    x = 17,223,051.14/6,655.58
  6. Step 6: Final answer
    x = 2,587.76

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1.5x scale

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.