Home / 3,430.51-5,144.70-1,238.95

Finding the Fourth Proportional to 3,430.51, 5,144.70 and 1,238.95

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Solution

The fourth proportional to 3,430.51, 5,144.70 and 1,238.95 is: 1,858.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.51 : 5,144.70 = 1,238.95 : x
  2. Step 2: Convert to fraction form
    3,430.51/5,144.70 = 1,238.95/x
  3. Step 3: Cross multiply
    3,430.51x = 5,144.70 × 1,238.95
  4. Step 4: Simplify right side
    3,430.51x = 6,374,026.07
  5. Step 5: Solve for x
    x = 6,374,026.07/3,430.51
  6. Step 6: Final answer
    x = 1,858.04

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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.