Home / 2,137.32-2,949.96-1,352.40

Finding the Fourth Proportional to 2,137.32, 2,949.96 and 1,352.40

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Solution

The fourth proportional to 2,137.32, 2,949.96 and 1,352.40 is: 1,866.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.32 : 2,949.96 = 1,352.40 : x
  2. Step 2: Convert to fraction form
    2,137.32/2,949.96 = 1,352.40/x
  3. Step 3: Cross multiply
    2,137.32x = 2,949.96 × 1,352.40
  4. Step 4: Simplify right side
    2,137.32x = 3,989,525.90
  5. Step 5: Solve for x
    x = 3,989,525.90/2,137.32
  6. Step 6: Final answer
    x = 1,866.60

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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.