Home / 2,580.66-3,553.49-2,130.84

Finding the Fourth Proportional to 2,580.66, 3,553.49 and 2,130.84

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Solution

The fourth proportional to 2,580.66, 3,553.49 and 2,130.84 is: 2,934.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.66 : 3,553.49 = 2,130.84 : x
  2. Step 2: Convert to fraction form
    2,580.66/3,553.49 = 2,130.84/x
  3. Step 3: Cross multiply
    2,580.66x = 3,553.49 × 2,130.84
  4. Step 4: Simplify right side
    2,580.66x = 7,571,923.96
  5. Step 5: Solve for x
    x = 7,571,923.96/2,580.66
  6. Step 6: Final answer
    x = 2,934.10

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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.