Home / 3,985.32-5,497.02-3,654.84

Finding the Fourth Proportional to 3,985.32, 5,497.02 and 3,654.84

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Solution

The fourth proportional to 3,985.32, 5,497.02 and 3,654.84 is: 5,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.32 : 5,497.02 = 3,654.84 : x
  2. Step 2: Convert to fraction form
    3,985.32/5,497.02 = 3,654.84/x
  3. Step 3: Cross multiply
    3,985.32x = 5,497.02 × 3,654.84
  4. Step 4: Simplify right side
    3,985.32x = 20,090,728.58
  5. Step 5: Solve for x
    x = 20,090,728.58/3,985.32
  6. Step 6: Final answer
    x = 5,041.18

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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.