Home / 4,980.23-6,872.60-2,856.14

Finding the Fourth Proportional to 4,980.23, 6,872.60 and 2,856.14

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Solution

The fourth proportional to 4,980.23, 6,872.60 and 2,856.14 is: 3,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.23 : 6,872.60 = 2,856.14 : x
  2. Step 2: Convert to fraction form
    4,980.23/6,872.60 = 2,856.14/x
  3. Step 3: Cross multiply
    4,980.23x = 6,872.60 × 2,856.14
  4. Step 4: Simplify right side
    4,980.23x = 19,629,080.54
  5. Step 5: Solve for x
    x = 19,629,080.54/4,980.23
  6. Step 6: Final answer
    x = 3,941.40

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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.