Home / 2,211.64-3,052.14-1,216.99

Finding the Fourth Proportional to 2,211.64, 3,052.14 and 1,216.99

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Solution

The fourth proportional to 2,211.64, 3,052.14 and 1,216.99 is: 1,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.64 : 3,052.14 = 1,216.99 : x
  2. Step 2: Convert to fraction form
    2,211.64/3,052.14 = 1,216.99/x
  3. Step 3: Cross multiply
    2,211.64x = 3,052.14 × 1,216.99
  4. Step 4: Simplify right side
    2,211.64x = 3,714,423.86
  5. Step 5: Solve for x
    x = 3,714,423.86/2,211.64
  6. Step 6: Final answer
    x = 1,679.49

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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.