Home / 3,128.39-4,692.58-1,048

Finding the Fourth Proportional to 3,128.39, 4,692.58 and 1,048

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Solution

The fourth proportional to 3,128.39, 4,692.58 and 1,048 is: 1,572.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.39 : 4,692.58 = 1,048 : x
  2. Step 2: Convert to fraction form
    3,128.39/4,692.58 = 1,048/x
  3. Step 3: Cross multiply
    3,128.39x = 4,692.58 × 1,048
  4. Step 4: Simplify right side
    3,128.39x = 4,917,823.84
  5. Step 5: Solve for x
    x = 4,917,823.84/3,128.39
  6. Step 6: Final answer
    x = 1,572.00

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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.