Home / 3,985.12-5,497.95-2,412.64

Finding the Fourth Proportional to 3,985.12, 5,497.95 and 2,412.64

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Solution

The fourth proportional to 3,985.12, 5,497.95 and 2,412.64 is: 3,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.12 : 5,497.95 = 2,412.64 : x
  2. Step 2: Convert to fraction form
    3,985.12/5,497.95 = 2,412.64/x
  3. Step 3: Cross multiply
    3,985.12x = 5,497.95 × 2,412.64
  4. Step 4: Simplify right side
    3,985.12x = 13,264,574.09
  5. Step 5: Solve for x
    x = 13,264,574.09/3,985.12
  6. Step 6: Final answer
    x = 3,328.53

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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.