Home / 1,865.28-2,559.84-1,669.80

Finding the Fourth Proportional to 1,865.28, 2,559.84 and 1,669.80

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Solution

The fourth proportional to 1,865.28, 2,559.84 and 1,669.80 is: 2,291.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.28 : 2,559.84 = 1,669.80 : x
  2. Step 2: Convert to fraction form
    1,865.28/2,559.84 = 1,669.80/x
  3. Step 3: Cross multiply
    1,865.28x = 2,559.84 × 1,669.80
  4. Step 4: Simplify right side
    1,865.28x = 4,274,420.83
  5. Step 5: Solve for x
    x = 4,274,420.83/1,865.28
  6. Step 6: Final answer
    x = 2,291.57

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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.