Home / 1,770.55-2,440.49-1,557.31

Finding the Fourth Proportional to 1,770.55, 2,440.49 and 1,557.31

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Solution

The fourth proportional to 1,770.55, 2,440.49 and 1,557.31 is: 2,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.55 : 2,440.49 = 1,557.31 : x
  2. Step 2: Convert to fraction form
    1,770.55/2,440.49 = 1,557.31/x
  3. Step 3: Cross multiply
    1,770.55x = 2,440.49 × 1,557.31
  4. Step 4: Simplify right side
    1,770.55x = 3,800,599.48
  5. Step 5: Solve for x
    x = 3,800,599.48/1,770.55
  6. Step 6: Final answer
    x = 2,146.56

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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.