Home / 2,750.40-3,795.47-1,555.43

Finding the Fourth Proportional to 2,750.40, 3,795.47 and 1,555.43

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Solution

The fourth proportional to 2,750.40, 3,795.47 and 1,555.43 is: 2,146.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.40 : 3,795.47 = 1,555.43 : x
  2. Step 2: Convert to fraction form
    2,750.40/3,795.47 = 1,555.43/x
  3. Step 3: Cross multiply
    2,750.40x = 3,795.47 × 1,555.43
  4. Step 4: Simplify right side
    2,750.40x = 5,903,561.15
  5. Step 5: Solve for x
    x = 5,903,561.15/2,750.40
  6. Step 6: Final answer
    x = 2,146.44

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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.