Home / 5,100.39-7,643.40-4,055.76

Finding the Fourth Proportional to 5,100.39, 7,643.40 and 4,055.76

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Solution

The fourth proportional to 5,100.39, 7,643.40 and 4,055.76 is: 6,077.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,100.39 : 7,643.40 = 4,055.76 : x
  2. Step 2: Convert to fraction form
    5,100.39/7,643.40 = 4,055.76/x
  3. Step 3: Cross multiply
    5,100.39x = 7,643.40 × 4,055.76
  4. Step 4: Simplify right side
    5,100.39x = 30,999,780.77
  5. Step 5: Solve for x
    x = 30,999,780.77/5,100.39
  6. Step 6: Final answer
    x = 6,077.92

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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.