Home / 3,365.03-4,643.78-1,967.78

Finding the Fourth Proportional to 3,365.03, 4,643.78 and 1,967.78

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Solution

The fourth proportional to 3,365.03, 4,643.78 and 1,967.78 is: 2,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,365.03 : 4,643.78 = 1,967.78 : x
  2. Step 2: Convert to fraction form
    3,365.03/4,643.78 = 1,967.78/x
  3. Step 3: Cross multiply
    3,365.03x = 4,643.78 × 1,967.78
  4. Step 4: Simplify right side
    3,365.03x = 9,137,937.41
  5. Step 5: Solve for x
    x = 9,137,937.41/3,365.03
  6. Step 6: Final answer
    x = 2,715.56

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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.