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Finding the Fourth Proportional to 5,561.66, 7,681.84 and 4,398.14

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Solution

The fourth proportional to 5,561.66, 7,681.84 and 4,398.14 is: 6,074.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.66 : 7,681.84 = 4,398.14 : x
  2. Step 2: Convert to fraction form
    5,561.66/7,681.84 = 4,398.14/x
  3. Step 3: Cross multiply
    5,561.66x = 7,681.84 × 4,398.14
  4. Step 4: Simplify right side
    5,561.66x = 33,785,807.78
  5. Step 5: Solve for x
    x = 33,785,807.78/5,561.66
  6. Step 6: Final answer
    x = 6,074.77

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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.