Home / 2,315.79-3,470.03-1,274.26

Finding the Fourth Proportional to 2,315.79, 3,470.03 and 1,274.26

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Solution

The fourth proportional to 2,315.79, 3,470.03 and 1,274.26 is: 1,909.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.79 : 3,470.03 = 1,274.26 : x
  2. Step 2: Convert to fraction form
    2,315.79/3,470.03 = 1,274.26/x
  3. Step 3: Cross multiply
    2,315.79x = 3,470.03 × 1,274.26
  4. Step 4: Simplify right side
    2,315.79x = 4,421,720.43
  5. Step 5: Solve for x
    x = 4,421,720.43/2,315.79
  6. Step 6: Final answer
    x = 1,909.38

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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.