Home / 2,615.51-3,921.44-1,316.27

Finding the Fourth Proportional to 2,615.51, 3,921.44 and 1,316.27

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Solution

The fourth proportional to 2,615.51, 3,921.44 and 1,316.27 is: 1,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.51 : 3,921.44 = 1,316.27 : x
  2. Step 2: Convert to fraction form
    2,615.51/3,921.44 = 1,316.27/x
  3. Step 3: Cross multiply
    2,615.51x = 3,921.44 × 1,316.27
  4. Step 4: Simplify right side
    2,615.51x = 5,161,647.64
  5. Step 5: Solve for x
    x = 5,161,647.64/2,615.51
  6. Step 6: Final answer
    x = 1,973.48

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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.