Home / 1,544.51-2,128.95-1,212.38

Finding the Fourth Proportional to 1,544.51, 2,128.95 and 1,212.38

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Solution

The fourth proportional to 1,544.51, 2,128.95 and 1,212.38 is: 1,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.51 : 2,128.95 = 1,212.38 : x
  2. Step 2: Convert to fraction form
    1,544.51/2,128.95 = 1,212.38/x
  3. Step 3: Cross multiply
    1,544.51x = 2,128.95 × 1,212.38
  4. Step 4: Simplify right side
    1,544.51x = 2,581,093.74
  5. Step 5: Solve for x
    x = 2,581,093.74/1,544.51
  6. Step 6: Final answer
    x = 1,671.14

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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.