Home / 3,129.39-4,692.69-1,668.24

Finding the Fourth Proportional to 3,129.39, 4,692.69 and 1,668.24

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Solution

The fourth proportional to 3,129.39, 4,692.69 and 1,668.24 is: 2,501.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.39 : 4,692.69 = 1,668.24 : x
  2. Step 2: Convert to fraction form
    3,129.39/4,692.69 = 1,668.24/x
  3. Step 3: Cross multiply
    3,129.39x = 4,692.69 × 1,668.24
  4. Step 4: Simplify right side
    3,129.39x = 7,828,533.17
  5. Step 5: Solve for x
    x = 7,828,533.17/3,129.39
  6. Step 6: Final answer
    x = 2,501.62

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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.