Home / 1,561.84-2,148.60-1,350.44

Finding the Fourth Proportional to 1,561.84, 2,148.60 and 1,350.44

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Solution

The fourth proportional to 1,561.84, 2,148.60 and 1,350.44 is: 1,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561.84 : 2,148.60 = 1,350.44 : x
  2. Step 2: Convert to fraction form
    1,561.84/2,148.60 = 1,350.44/x
  3. Step 3: Cross multiply
    1,561.84x = 2,148.60 × 1,350.44
  4. Step 4: Simplify right side
    1,561.84x = 2,901,555.38
  5. Step 5: Solve for x
    x = 2,901,555.38/1,561.84
  6. Step 6: Final answer
    x = 1,857.78

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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.