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Finding the Fourth Proportional to 5,553.55, 8,328.30 and 1,656.64

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Solution

The fourth proportional to 5,553.55, 8,328.30 and 1,656.64 is: 2,484.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.55 : 8,328.30 = 1,656.64 : x
  2. Step 2: Convert to fraction form
    5,553.55/8,328.30 = 1,656.64/x
  3. Step 3: Cross multiply
    5,553.55x = 8,328.30 × 1,656.64
  4. Step 4: Simplify right side
    5,553.55x = 13,796,994.91
  5. Step 5: Solve for x
    x = 13,796,994.91/5,553.55
  6. Step 6: Final answer
    x = 2,484.36

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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.