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Finding the Fourth Proportional to 1,860.56, 2,552.50 and 1,742.80

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Solution

The fourth proportional to 1,860.56, 2,552.50 and 1,742.80 is: 2,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.56 : 2,552.50 = 1,742.80 : x
  2. Step 2: Convert to fraction form
    1,860.56/2,552.50 = 1,742.80/x
  3. Step 3: Cross multiply
    1,860.56x = 2,552.50 × 1,742.80
  4. Step 4: Simplify right side
    1,860.56x = 4,448,497
  5. Step 5: Solve for x
    x = 4,448,497/1,860.56
  6. Step 6: Final answer
    x = 2,390.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.