Home / 3,987.87-5,967.23-2,345.19

Finding the Fourth Proportional to 3,987.87, 5,967.23 and 2,345.19

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Solution

The fourth proportional to 3,987.87, 5,967.23 and 2,345.19 is: 3,509.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.87 : 5,967.23 = 2,345.19 : x
  2. Step 2: Convert to fraction form
    3,987.87/5,967.23 = 2,345.19/x
  3. Step 3: Cross multiply
    3,987.87x = 5,967.23 × 2,345.19
  4. Step 4: Simplify right side
    3,987.87x = 13,994,276.40
  5. Step 5: Solve for x
    x = 13,994,276.40/3,987.87
  6. Step 6: Final answer
    x = 3,509.21

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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.