Home / 2,599.79-3,587.76-1,420.94

Finding the Fourth Proportional to 2,599.79, 3,587.76 and 1,420.94

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Solution

The fourth proportional to 2,599.79, 3,587.76 and 1,420.94 is: 1,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.79 : 3,587.76 = 1,420.94 : x
  2. Step 2: Convert to fraction form
    2,599.79/3,587.76 = 1,420.94/x
  3. Step 3: Cross multiply
    2,599.79x = 3,587.76 × 1,420.94
  4. Step 4: Simplify right side
    2,599.79x = 5,098,000.66
  5. Step 5: Solve for x
    x = 5,098,000.66/2,599.79
  6. Step 6: Final answer
    x = 1,960.93

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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.