Home / 2,882.78-3,977.90-1,623.74

Finding the Fourth Proportional to 2,882.78, 3,977.90 and 1,623.74

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Solution

The fourth proportional to 2,882.78, 3,977.90 and 1,623.74 is: 2,240.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,882.78 : 3,977.90 = 1,623.74 : x
  2. Step 2: Convert to fraction form
    2,882.78/3,977.90 = 1,623.74/x
  3. Step 3: Cross multiply
    2,882.78x = 3,977.90 × 1,623.74
  4. Step 4: Simplify right side
    2,882.78x = 6,459,075.35
  5. Step 5: Solve for x
    x = 6,459,075.35/2,882.78
  6. Step 6: Final answer
    x = 2,240.57

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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.