Home / 3,218.99-4,802.60-2,868.15

Finding the Fourth Proportional to 3,218.99, 4,802.60 and 2,868.15

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Solution

The fourth proportional to 3,218.99, 4,802.60 and 2,868.15 is: 4,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.99 : 4,802.60 = 2,868.15 : x
  2. Step 2: Convert to fraction form
    3,218.99/4,802.60 = 2,868.15/x
  3. Step 3: Cross multiply
    3,218.99x = 4,802.60 × 2,868.15
  4. Step 4: Simplify right side
    3,218.99x = 13,774,562.85
  5. Step 5: Solve for x
    x = 13,774,562.85/3,218.99
  6. Step 6: Final answer
    x = 4,279.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.