Home / 2,388.21-3,295.16-1,379.91

Finding the Fourth Proportional to 2,388.21, 3,295.16 and 1,379.91

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Solution

The fourth proportional to 2,388.21, 3,295.16 and 1,379.91 is: 1,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.21 : 3,295.16 = 1,379.91 : x
  2. Step 2: Convert to fraction form
    2,388.21/3,295.16 = 1,379.91/x
  3. Step 3: Cross multiply
    2,388.21x = 3,295.16 × 1,379.91
  4. Step 4: Simplify right side
    2,388.21x = 4,547,024.24
  5. Step 5: Solve for x
    x = 4,547,024.24/2,388.21
  6. Step 6: Final answer
    x = 1,903.95

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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.