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Finding the Fourth Proportional to 2,599.93, 3,587.74 and 1,420.93

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Solution

The fourth proportional to 2,599.93, 3,587.74 and 1,420.93 is: 1,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,599.93 : 3,587.74 = 1,420.93 : x
  2. Step 2: Convert to fraction form
    2,599.93/3,587.74 = 1,420.93/x
  3. Step 3: Cross multiply
    2,599.93x = 3,587.74 × 1,420.93
  4. Step 4: Simplify right side
    2,599.93x = 5,097,927.40
  5. Step 5: Solve for x
    x = 5,097,927.40/2,599.93
  6. Step 6: Final answer
    x = 1,960.79

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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.