Home / 5,905-8,148.19-3,386.98

Finding the Fourth Proportional to 5,905, 8,148.19 and 3,386.98

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Solution

The fourth proportional to 5,905, 8,148.19 and 3,386.98 is: 4,673.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905 : 8,148.19 = 3,386.98 : x
  2. Step 2: Convert to fraction form
    5,905/8,148.19 = 3,386.98/x
  3. Step 3: Cross multiply
    5,905x = 8,148.19 × 3,386.98
  4. Step 4: Simplify right side
    5,905x = 27,597,756.57
  5. Step 5: Solve for x
    x = 27,597,756.57/5,905
  6. Step 6: Final answer
    x = 4,673.63

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1.5x scale

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.