Home / 2,402.26-3,315-1,407.63

Finding the Fourth Proportional to 2,402.26, 3,315 and 1,407.63

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Solution

The fourth proportional to 2,402.26, 3,315 and 1,407.63 is: 1,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.26 : 3,315 = 1,407.63 : x
  2. Step 2: Convert to fraction form
    2,402.26/3,315 = 1,407.63/x
  3. Step 3: Cross multiply
    2,402.26x = 3,315 × 1,407.63
  4. Step 4: Simplify right side
    2,402.26x = 4,666,293.45
  5. Step 5: Solve for x
    x = 4,666,293.45/2,402.26
  6. Step 6: Final answer
    x = 1,942.46

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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.