Home / 3,099.96-4,642.38-2,988.18

Finding the Fourth Proportional to 3,099.96, 4,642.38 and 2,988.18

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Solution

The fourth proportional to 3,099.96, 4,642.38 and 2,988.18 is: 4,474.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.96 : 4,642.38 = 2,988.18 : x
  2. Step 2: Convert to fraction form
    3,099.96/4,642.38 = 2,988.18/x
  3. Step 3: Cross multiply
    3,099.96x = 4,642.38 × 2,988.18
  4. Step 4: Simplify right side
    3,099.96x = 13,872,267.07
  5. Step 5: Solve for x
    x = 13,872,267.07/3,099.96
  6. Step 6: Final answer
    x = 4,474.98

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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.