Home / 5,905.21-8,148.51-3,386.63

Finding the Fourth Proportional to 5,905.21, 8,148.51 and 3,386.63

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Solution

The fourth proportional to 5,905.21, 8,148.51 and 3,386.63 is: 4,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,905.21 : 8,148.51 = 3,386.63 : x
  2. Step 2: Convert to fraction form
    5,905.21/8,148.51 = 3,386.63/x
  3. Step 3: Cross multiply
    5,905.21x = 8,148.51 × 3,386.63
  4. Step 4: Simplify right side
    5,905.21x = 27,595,988.42
  5. Step 5: Solve for x
    x = 27,595,988.42/5,905.21
  6. Step 6: Final answer
    x = 4,673.16

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Double scale
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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.