Home / 1,491.40-2,054.94-1,097.80

Finding the Fourth Proportional to 1,491.40, 2,054.94 and 1,097.80

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Solution

The fourth proportional to 1,491.40, 2,054.94 and 1,097.80 is: 1,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.40 : 2,054.94 = 1,097.80 : x
  2. Step 2: Convert to fraction form
    1,491.40/2,054.94 = 1,097.80/x
  3. Step 3: Cross multiply
    1,491.40x = 2,054.94 × 1,097.80
  4. Step 4: Simplify right side
    1,491.40x = 2,255,913.13
  5. Step 5: Solve for x
    x = 2,255,913.13/1,491.40
  6. Step 6: Final answer
    x = 1,512.61

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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.