Home / 3,128.84-4,693.32-1,048.46

Finding the Fourth Proportional to 3,128.84, 4,693.32 and 1,048.46

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Solution

The fourth proportional to 3,128.84, 4,693.32 and 1,048.46 is: 1,572.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.84 : 4,693.32 = 1,048.46 : x
  2. Step 2: Convert to fraction form
    3,128.84/4,693.32 = 1,048.46/x
  3. Step 3: Cross multiply
    3,128.84x = 4,693.32 × 1,048.46
  4. Step 4: Simplify right side
    3,128.84x = 4,920,758.29
  5. Step 5: Solve for x
    x = 4,920,758.29/3,128.84
  6. Step 6: Final answer
    x = 1,572.71

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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.