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Finding the Fourth Proportional to 8,990.81, 13,484.39 and 2,417.05

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Solution

The fourth proportional to 8,990.81, 13,484.39 and 2,417.05 is: 3,625.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.81 : 13,484.39 = 2,417.05 : x
  2. Step 2: Convert to fraction form
    8,990.81/13,484.39 = 2,417.05/x
  3. Step 3: Cross multiply
    8,990.81x = 13,484.39 × 2,417.05
  4. Step 4: Simplify right side
    8,990.81x = 32,592,449.62
  5. Step 5: Solve for x
    x = 32,592,449.62/8,990.81
  6. Step 6: Final answer
    x = 3,625.09

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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.