Home / 2,599.98-3,587.99-1,421.07

Finding the Fourth Proportional to 2,599.98, 3,587.99 and 1,421.07

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Solution

The fourth proportional to 2,599.98, 3,587.99 and 1,421.07 is: 1,961.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.98 : 3,587.99 = 1,421.07 : x
  2. Step 2: Convert to fraction form
    2,599.98/3,587.99 = 1,421.07/x
  3. Step 3: Cross multiply
    2,599.98x = 3,587.99 × 1,421.07
  4. Step 4: Simplify right side
    2,599.98x = 5,098,784.95
  5. Step 5: Solve for x
    x = 5,098,784.95/2,599.98
  6. Step 6: Final answer
    x = 1,961.09

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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.