Home / 2,599.91-3,587.93-1,421.09

Finding the Fourth Proportional to 2,599.91, 3,587.93 and 1,421.09

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Solution

The fourth proportional to 2,599.91, 3,587.93 and 1,421.09 is: 1,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.91 : 3,587.93 = 1,421.09 : x
  2. Step 2: Convert to fraction form
    2,599.91/3,587.93 = 1,421.09/x
  3. Step 3: Cross multiply
    2,599.91x = 3,587.93 × 1,421.09
  4. Step 4: Simplify right side
    2,599.91x = 5,098,771.44
  5. Step 5: Solve for x
    x = 5,098,771.44/2,599.91
  6. Step 6: Final answer
    x = 1,961.13

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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.