Home / 3,779.44-5,215.74-2,287.63

Finding the Fourth Proportional to 3,779.44, 5,215.74 and 2,287.63

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Solution

The fourth proportional to 3,779.44, 5,215.74 and 2,287.63 is: 3,157.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.44 : 5,215.74 = 2,287.63 : x
  2. Step 2: Convert to fraction form
    3,779.44/5,215.74 = 2,287.63/x
  3. Step 3: Cross multiply
    3,779.44x = 5,215.74 × 2,287.63
  4. Step 4: Simplify right side
    3,779.44x = 11,931,683.30
  5. Step 5: Solve for x
    x = 11,931,683.30/3,779.44
  6. Step 6: Final answer
    x = 3,157.00

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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.