Home / 4,987.47-7,474.68-3,605.43

Finding the Fourth Proportional to 4,987.47, 7,474.68 and 3,605.43

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Solution

The fourth proportional to 4,987.47, 7,474.68 and 3,605.43 is: 5,403.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987.47 : 7,474.68 = 3,605.43 : x
  2. Step 2: Convert to fraction form
    4,987.47/7,474.68 = 3,605.43/x
  3. Step 3: Cross multiply
    4,987.47x = 7,474.68 × 3,605.43
  4. Step 4: Simplify right side
    4,987.47x = 26,949,435.51
  5. Step 5: Solve for x
    x = 26,949,435.51/4,987.47
  6. Step 6: Final answer
    x = 5,403.43

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1.5x scale

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.