Home / 5,384.36-7,429.08-3,144.95

Finding the Fourth Proportional to 5,384.36, 7,429.08 and 3,144.95

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Solution

The fourth proportional to 5,384.36, 7,429.08 and 3,144.95 is: 4,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.36 : 7,429.08 = 3,144.95 : x
  2. Step 2: Convert to fraction form
    5,384.36/7,429.08 = 3,144.95/x
  3. Step 3: Cross multiply
    5,384.36x = 7,429.08 × 3,144.95
  4. Step 4: Simplify right side
    5,384.36x = 23,364,085.15
  5. Step 5: Solve for x
    x = 23,364,085.15/5,384.36
  6. Step 6: Final answer
    x = 4,339.25

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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.