Home / 2,881.91-3,977.15-1,623.20

Finding the Fourth Proportional to 2,881.91, 3,977.15 and 1,623.20

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Solution

The fourth proportional to 2,881.91, 3,977.15 and 1,623.20 is: 2,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.91 : 3,977.15 = 1,623.20 : x
  2. Step 2: Convert to fraction form
    2,881.91/3,977.15 = 1,623.20/x
  3. Step 3: Cross multiply
    2,881.91x = 3,977.15 × 1,623.20
  4. Step 4: Simplify right side
    2,881.91x = 6,455,681.88
  5. Step 5: Solve for x
    x = 6,455,681.88/2,881.91
  6. Step 6: Final answer
    x = 2,240.07

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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.