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Finding the Fourth Proportional to 3,001.66, 4,502.80 and 1,685.81

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Solution

The fourth proportional to 3,001.66, 4,502.80 and 1,685.81 is: 2,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,001.66 : 4,502.80 = 1,685.81 : x
  2. Step 2: Convert to fraction form
    3,001.66/4,502.80 = 1,685.81/x
  3. Step 3: Cross multiply
    3,001.66x = 4,502.80 × 1,685.81
  4. Step 4: Simplify right side
    3,001.66x = 7,590,856.84
  5. Step 5: Solve for x
    x = 7,590,856.84/3,001.66
  6. Step 6: Final answer
    x = 2,528.89

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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.