Home / 2,615.31-3,606.75-1,718.22

Finding the Fourth Proportional to 2,615.31, 3,606.75 and 1,718.22

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Solution

The fourth proportional to 2,615.31, 3,606.75 and 1,718.22 is: 2,369.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.31 : 3,606.75 = 1,718.22 : x
  2. Step 2: Convert to fraction form
    2,615.31/3,606.75 = 1,718.22/x
  3. Step 3: Cross multiply
    2,615.31x = 3,606.75 × 1,718.22
  4. Step 4: Simplify right side
    2,615.31x = 6,197,189.99
  5. Step 5: Solve for x
    x = 6,197,189.99/2,615.31
  6. Step 6: Final answer
    x = 2,369.58

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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.