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Finding the Fourth Proportional to 2,009.60, 3,014.40 and 711.07

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Solution

The fourth proportional to 2,009.60, 3,014.40 and 711.07 is: 1,066.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.60 : 3,014.40 = 711.07 : x
  2. Step 2: Convert to fraction form
    2,009.60/3,014.40 = 711.07/x
  3. Step 3: Cross multiply
    2,009.60x = 3,014.40 × 711.07
  4. Step 4: Simplify right side
    2,009.60x = 2,143,449.41
  5. Step 5: Solve for x
    x = 2,143,449.41/2,009.60
  6. Step 6: Final answer
    x = 1,066.61

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Similar ratio
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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.