Home / 3,972.12-5,461.74-3,549.84

Finding the Fourth Proportional to 3,972.12, 5,461.74 and 3,549.84

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Solution

The fourth proportional to 3,972.12, 5,461.74 and 3,549.84 is: 4,881.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.12 : 5,461.74 = 3,549.84 : x
  2. Step 2: Convert to fraction form
    3,972.12/5,461.74 = 3,549.84/x
  3. Step 3: Cross multiply
    3,972.12x = 5,461.74 × 3,549.84
  4. Step 4: Simplify right side
    3,972.12x = 19,388,303.12
  5. Step 5: Solve for x
    x = 19,388,303.12/3,972.12
  6. Step 6: Final answer
    x = 4,881.10

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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.