Home / 3,913.31-5,870.92-1,140

Finding the Fourth Proportional to 3,913.31, 5,870.92 and 1,140

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Solution

The fourth proportional to 3,913.31, 5,870.92 and 1,140 is: 1,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.31 : 5,870.92 = 1,140 : x
  2. Step 2: Convert to fraction form
    3,913.31/5,870.92 = 1,140/x
  3. Step 3: Cross multiply
    3,913.31x = 5,870.92 × 1,140
  4. Step 4: Simplify right side
    3,913.31x = 6,692,845.95
  5. Step 5: Solve for x
    x = 6,692,845.95/3,913.31
  6. Step 6: Final answer
    x = 1,710.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.