Home / 2,868.60-3,959.48-1,749.98

Finding the Fourth Proportional to 2,868.60, 3,959.48 and 1,749.98

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Solution

The fourth proportional to 2,868.60, 3,959.48 and 1,749.98 is: 2,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.60 : 3,959.48 = 1,749.98 : x
  2. Step 2: Convert to fraction form
    2,868.60/3,959.48 = 1,749.98/x
  3. Step 3: Cross multiply
    2,868.60x = 3,959.48 × 1,749.98
  4. Step 4: Simplify right side
    2,868.60x = 6,929,010.81
  5. Step 5: Solve for x
    x = 6,929,010.81/2,868.60
  6. Step 6: Final answer
    x = 2,415.47

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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.