Home / 3,187.40-4,396.93-1,860.92

Finding the Fourth Proportional to 3,187.40, 4,396.93 and 1,860.92

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Solution

The fourth proportional to 3,187.40, 4,396.93 and 1,860.92 is: 2,567.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.40 : 4,396.93 = 1,860.92 : x
  2. Step 2: Convert to fraction form
    3,187.40/4,396.93 = 1,860.92/x
  3. Step 3: Cross multiply
    3,187.40x = 4,396.93 × 1,860.92
  4. Step 4: Simplify right side
    3,187.40x = 8,182,360.03
  5. Step 5: Solve for x
    x = 8,182,360.03/3,187.40
  6. Step 6: Final answer
    x = 2,567.09

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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.