Home / 4,991.36-7,487.61-1,659.90

Finding the Fourth Proportional to 4,991.36, 7,487.61 and 1,659.90

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Solution

The fourth proportional to 4,991.36, 7,487.61 and 1,659.90 is: 2,490.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.36 : 7,487.61 = 1,659.90 : x
  2. Step 2: Convert to fraction form
    4,991.36/7,487.61 = 1,659.90/x
  3. Step 3: Cross multiply
    4,991.36x = 7,487.61 × 1,659.90
  4. Step 4: Simplify right side
    4,991.36x = 12,428,683.84
  5. Step 5: Solve for x
    x = 12,428,683.84/4,991.36
  6. Step 6: Final answer
    x = 2,490.04

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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.