Home / 3,261.76-4,869.80-2,985.28

Finding the Fourth Proportional to 3,261.76, 4,869.80 and 2,985.28

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Solution

The fourth proportional to 3,261.76, 4,869.80 and 2,985.28 is: 4,457.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261.76 : 4,869.80 = 2,985.28 : x
  2. Step 2: Convert to fraction form
    3,261.76/4,869.80 = 2,985.28/x
  3. Step 3: Cross multiply
    3,261.76x = 4,869.80 × 2,985.28
  4. Step 4: Simplify right side
    3,261.76x = 14,537,716.54
  5. Step 5: Solve for x
    x = 14,537,716.54/3,261.76
  6. Step 6: Final answer
    x = 4,457.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.