Home / 3,100.93-4,648.12-1,020.39

Finding the Fourth Proportional to 3,100.93, 4,648.12 and 1,020.39

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Solution

The fourth proportional to 3,100.93, 4,648.12 and 1,020.39 is: 1,529.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.93 : 4,648.12 = 1,020.39 : x
  2. Step 2: Convert to fraction form
    3,100.93/4,648.12 = 1,020.39/x
  3. Step 3: Cross multiply
    3,100.93x = 4,648.12 × 1,020.39
  4. Step 4: Simplify right side
    3,100.93x = 4,742,895.17
  5. Step 5: Solve for x
    x = 4,742,895.17/3,100.93
  6. Step 6: Final answer
    x = 1,529.51

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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.