Home / 1,860.90-2,567.61-1,161.78

Finding the Fourth Proportional to 1,860.90, 2,567.61 and 1,161.78

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Solution

The fourth proportional to 1,860.90, 2,567.61 and 1,161.78 is: 1,602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.90 : 2,567.61 = 1,161.78 : x
  2. Step 2: Convert to fraction form
    1,860.90/2,567.61 = 1,161.78/x
  3. Step 3: Cross multiply
    1,860.90x = 2,567.61 × 1,161.78
  4. Step 4: Simplify right side
    1,860.90x = 2,982,997.95
  5. Step 5: Solve for x
    x = 2,982,997.95/1,860.90
  6. Step 6: Final answer
    x = 1,602.99

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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.