Home / 3,994.11-5,510.57-2,421.63

Finding the Fourth Proportional to 3,994.11, 5,510.57 and 2,421.63

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Solution

The fourth proportional to 3,994.11, 5,510.57 and 2,421.63 is: 3,341.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.11 : 5,510.57 = 2,421.63 : x
  2. Step 2: Convert to fraction form
    3,994.11/5,510.57 = 2,421.63/x
  3. Step 3: Cross multiply
    3,994.11x = 5,510.57 × 2,421.63
  4. Step 4: Simplify right side
    3,994.11x = 13,344,549.52
  5. Step 5: Solve for x
    x = 13,344,549.52/3,994.11
  6. Step 6: Final answer
    x = 3,341.06

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Half scale
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Double scale
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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.