Home / 2,977.16-4,463.98-1,221.64

Finding the Fourth Proportional to 2,977.16, 4,463.98 and 1,221.64

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Solution

The fourth proportional to 2,977.16, 4,463.98 and 1,221.64 is: 1,831.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,977.16 : 4,463.98 = 1,221.64 : x
  2. Step 2: Convert to fraction form
    2,977.16/4,463.98 = 1,221.64/x
  3. Step 3: Cross multiply
    2,977.16x = 4,463.98 × 1,221.64
  4. Step 4: Simplify right side
    2,977.16x = 5,453,376.53
  5. Step 5: Solve for x
    x = 5,453,376.53/2,977.16
  6. Step 6: Final answer
    x = 1,831.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.