Home / 1,548.85-2,138.78-1,053.33

Finding the Fourth Proportional to 1,548.85, 2,138.78 and 1,053.33

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Solution

The fourth proportional to 1,548.85, 2,138.78 and 1,053.33 is: 1,454.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.85 : 2,138.78 = 1,053.33 : x
  2. Step 2: Convert to fraction form
    1,548.85/2,138.78 = 1,053.33/x
  3. Step 3: Cross multiply
    1,548.85x = 2,138.78 × 1,053.33
  4. Step 4: Simplify right side
    1,548.85x = 2,252,841.14
  5. Step 5: Solve for x
    x = 2,252,841.14/1,548.85
  6. Step 6: Final answer
    x = 1,454.53

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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.