Home / 4,869.28-6,719.23-2,980.08

Finding the Fourth Proportional to 4,869.28, 6,719.23 and 2,980.08

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Solution

The fourth proportional to 4,869.28, 6,719.23 and 2,980.08 is: 4,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.28 : 6,719.23 = 2,980.08 : x
  2. Step 2: Convert to fraction form
    4,869.28/6,719.23 = 2,980.08/x
  3. Step 3: Cross multiply
    4,869.28x = 6,719.23 × 2,980.08
  4. Step 4: Simplify right side
    4,869.28x = 20,023,842.94
  5. Step 5: Solve for x
    x = 20,023,842.94/4,869.28
  6. Step 6: Final answer
    x = 4,112.28

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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.