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Finding the Fourth Proportional to 7,705.56, 11,558.34 and 1,862.17

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Solution

The fourth proportional to 7,705.56, 11,558.34 and 1,862.17 is: 2,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.56 : 11,558.34 = 1,862.17 : x
  2. Step 2: Convert to fraction form
    7,705.56/11,558.34 = 1,862.17/x
  3. Step 3: Cross multiply
    7,705.56x = 11,558.34 × 1,862.17
  4. Step 4: Simplify right side
    7,705.56x = 21,523,565.10
  5. Step 5: Solve for x
    x = 21,523,565.10/7,705.56
  6. Step 6: Final answer
    x = 2,793.25

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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.