Home / 4,869.88-6,719.10-2,879.56

Finding the Fourth Proportional to 4,869.88, 6,719.10 and 2,879.56

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Solution

The fourth proportional to 4,869.88, 6,719.10 and 2,879.56 is: 3,973.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.88 : 6,719.10 = 2,879.56 : x
  2. Step 2: Convert to fraction form
    4,869.88/6,719.10 = 2,879.56/x
  3. Step 3: Cross multiply
    4,869.88x = 6,719.10 × 2,879.56
  4. Step 4: Simplify right side
    4,869.88x = 19,348,051.60
  5. Step 5: Solve for x
    x = 19,348,051.60/4,869.88
  6. Step 6: Final answer
    x = 3,973.00

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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.