Home / 4,980.57-6,871.53-2,883.21

Finding the Fourth Proportional to 4,980.57, 6,871.53 and 2,883.21

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Solution

The fourth proportional to 4,980.57, 6,871.53 and 2,883.21 is: 3,977.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.57 : 6,871.53 = 2,883.21 : x
  2. Step 2: Convert to fraction form
    4,980.57/6,871.53 = 2,883.21/x
  3. Step 3: Cross multiply
    4,980.57x = 6,871.53 × 2,883.21
  4. Step 4: Simplify right side
    4,980.57x = 19,812,064.01
  5. Step 5: Solve for x
    x = 19,812,064.01/4,980.57
  6. Step 6: Final answer
    x = 3,977.87

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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.