Home / 1,451.16-2,178.06-1,222.68

Finding the Fourth Proportional to 1,451.16, 2,178.06 and 1,222.68

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Solution

The fourth proportional to 1,451.16, 2,178.06 and 1,222.68 is: 1,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.16 : 2,178.06 = 1,222.68 : x
  2. Step 2: Convert to fraction form
    1,451.16/2,178.06 = 1,222.68/x
  3. Step 3: Cross multiply
    1,451.16x = 2,178.06 × 1,222.68
  4. Step 4: Simplify right side
    1,451.16x = 2,663,070.40
  5. Step 5: Solve for x
    x = 2,663,070.40/1,451.16
  6. Step 6: Final answer
    x = 1,835.13

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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.