Home / 2,643.40-3,962.87-1,667.35

Finding the Fourth Proportional to 2,643.40, 3,962.87 and 1,667.35

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Solution

The fourth proportional to 2,643.40, 3,962.87 and 1,667.35 is: 2,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.40 : 3,962.87 = 1,667.35 : x
  2. Step 2: Convert to fraction form
    2,643.40/3,962.87 = 1,667.35/x
  3. Step 3: Cross multiply
    2,643.40x = 3,962.87 × 1,667.35
  4. Step 4: Simplify right side
    2,643.40x = 6,607,491.29
  5. Step 5: Solve for x
    x = 6,607,491.29/2,643.40
  6. Step 6: Final answer
    x = 2,499.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.