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Finding the Fourth Proportional to 6,355.60, 8,767.83 and 4,118.20

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Solution

The fourth proportional to 6,355.60, 8,767.83 and 4,118.20 is: 5,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.60 : 8,767.83 = 4,118.20 : x
  2. Step 2: Convert to fraction form
    6,355.60/8,767.83 = 4,118.20/x
  3. Step 3: Cross multiply
    6,355.60x = 8,767.83 × 4,118.20
  4. Step 4: Simplify right side
    6,355.60x = 36,107,677.51
  5. Step 5: Solve for x
    x = 36,107,677.51/6,355.60
  6. Step 6: Final answer
    x = 5,681.24

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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.