Home / 4,869.42-6,719.39-2,980.19

Finding the Fourth Proportional to 4,869.42, 6,719.39 and 2,980.19

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Solution

The fourth proportional to 4,869.42, 6,719.39 and 2,980.19 is: 4,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.42 : 6,719.39 = 2,980.19 : x
  2. Step 2: Convert to fraction form
    4,869.42/6,719.39 = 2,980.19/x
  3. Step 3: Cross multiply
    4,869.42x = 6,719.39 × 2,980.19
  4. Step 4: Simplify right side
    4,869.42x = 20,025,071.96
  5. Step 5: Solve for x
    x = 20,025,071.96/4,869.42
  6. Step 6: Final answer
    x = 4,112.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.