Home / 3,319.25-4,979.05-1,587.29

Finding the Fourth Proportional to 3,319.25, 4,979.05 and 1,587.29

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Solution

The fourth proportional to 3,319.25, 4,979.05 and 1,587.29 is: 2,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.25 : 4,979.05 = 1,587.29 : x
  2. Step 2: Convert to fraction form
    3,319.25/4,979.05 = 1,587.29/x
  3. Step 3: Cross multiply
    3,319.25x = 4,979.05 × 1,587.29
  4. Step 4: Simplify right side
    3,319.25x = 7,903,167.41
  5. Step 5: Solve for x
    x = 7,903,167.41/3,319.25
  6. Step 6: Final answer
    x = 2,381.01

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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.