Home / 2,987.44-4,477.50-2,254.72

Finding the Fourth Proportional to 2,987.44, 4,477.50 and 2,254.72

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Solution

The fourth proportional to 2,987.44, 4,477.50 and 2,254.72 is: 3,379.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.44 : 4,477.50 = 2,254.72 : x
  2. Step 2: Convert to fraction form
    2,987.44/4,477.50 = 2,254.72/x
  3. Step 3: Cross multiply
    2,987.44x = 4,477.50 × 2,254.72
  4. Step 4: Simplify right side
    2,987.44x = 10,095,508.80
  5. Step 5: Solve for x
    x = 10,095,508.80/2,987.44
  6. Step 6: Final answer
    x = 3,379.32

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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.