Home / 2,146.75-3,219.63-1,210.11

Finding the Fourth Proportional to 2,146.75, 3,219.63 and 1,210.11

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Solution

The fourth proportional to 2,146.75, 3,219.63 and 1,210.11 is: 1,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.75 : 3,219.63 = 1,210.11 : x
  2. Step 2: Convert to fraction form
    2,146.75/3,219.63 = 1,210.11/x
  3. Step 3: Cross multiply
    2,146.75x = 3,219.63 × 1,210.11
  4. Step 4: Simplify right side
    2,146.75x = 3,896,106.46
  5. Step 5: Solve for x
    x = 3,896,106.46/2,146.75
  6. Step 6: Final answer
    x = 1,814.89

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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.