Home / 3,639.40-5,460.06-1,558.36

Finding the Fourth Proportional to 3,639.40, 5,460.06 and 1,558.36

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Solution

The fourth proportional to 3,639.40, 5,460.06 and 1,558.36 is: 2,337.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.40 : 5,460.06 = 1,558.36 : x
  2. Step 2: Convert to fraction form
    3,639.40/5,460.06 = 1,558.36/x
  3. Step 3: Cross multiply
    3,639.40x = 5,460.06 × 1,558.36
  4. Step 4: Simplify right side
    3,639.40x = 8,508,739.10
  5. Step 5: Solve for x
    x = 8,508,739.10/3,639.40
  6. Step 6: Final answer
    x = 2,337.95

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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.