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Finding the Fourth Proportional to 5,666.64, 7,821.51 and 3,677.09

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Solution

The fourth proportional to 5,666.64, 7,821.51 and 3,677.09 is: 5,075.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,666.64 : 7,821.51 = 3,677.09 : x
  2. Step 2: Convert to fraction form
    5,666.64/7,821.51 = 3,677.09/x
  3. Step 3: Cross multiply
    5,666.64x = 7,821.51 × 3,677.09
  4. Step 4: Simplify right side
    5,666.64x = 28,760,357.10
  5. Step 5: Solve for x
    x = 28,760,357.10/5,666.64
  6. Step 6: Final answer
    x = 5,075.38

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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.