Home / 1,555.41-2,144.36-1,112.54

Finding the Fourth Proportional to 1,555.41, 2,144.36 and 1,112.54

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Solution

The fourth proportional to 1,555.41, 2,144.36 and 1,112.54 is: 1,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.41 : 2,144.36 = 1,112.54 : x
  2. Step 2: Convert to fraction form
    1,555.41/2,144.36 = 1,112.54/x
  3. Step 3: Cross multiply
    1,555.41x = 2,144.36 × 1,112.54
  4. Step 4: Simplify right side
    1,555.41x = 2,385,680.71
  5. Step 5: Solve for x
    x = 2,385,680.71/1,555.41
  6. Step 6: Final answer
    x = 1,533.80

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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.