Home / 3,128.18-4,692.60-1,048.10

Finding the Fourth Proportional to 3,128.18, 4,692.60 and 1,048.10

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Solution

The fourth proportional to 3,128.18, 4,692.60 and 1,048.10 is: 1,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.18 : 4,692.60 = 1,048.10 : x
  2. Step 2: Convert to fraction form
    3,128.18/4,692.60 = 1,048.10/x
  3. Step 3: Cross multiply
    3,128.18x = 4,692.60 × 1,048.10
  4. Step 4: Simplify right side
    3,128.18x = 4,918,290.60
  5. Step 5: Solve for x
    x = 4,918,290.60/3,128.18
  6. Step 6: Final answer
    x = 1,572.26

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1.5x scale

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.