Home / 2,121.06-2,927-1,176.96

Finding the Fourth Proportional to 2,121.06, 2,927 and 1,176.96

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Solution

The fourth proportional to 2,121.06, 2,927 and 1,176.96 is: 1,624.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.06 : 2,927 = 1,176.96 : x
  2. Step 2: Convert to fraction form
    2,121.06/2,927 = 1,176.96/x
  3. Step 3: Cross multiply
    2,121.06x = 2,927 × 1,176.96
  4. Step 4: Simplify right side
    2,121.06x = 3,444,961.92
  5. Step 5: Solve for x
    x = 3,444,961.92/2,121.06
  6. Step 6: Final answer
    x = 1,624.17

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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.