Home / 2,873.90-3,965.87-1,615.01

Finding the Fourth Proportional to 2,873.90, 3,965.87 and 1,615.01

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Solution

The fourth proportional to 2,873.90, 3,965.87 and 1,615.01 is: 2,228.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,873.90 : 3,965.87 = 1,615.01 : x
  2. Step 2: Convert to fraction form
    2,873.90/3,965.87 = 1,615.01/x
  3. Step 3: Cross multiply
    2,873.90x = 3,965.87 × 1,615.01
  4. Step 4: Simplify right side
    2,873.90x = 6,404,903.92
  5. Step 5: Solve for x
    x = 6,404,903.92/2,873.90
  6. Step 6: Final answer
    x = 2,228.64

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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.