Home / 3,071.92-4,240.70-1,812.60

Finding the Fourth Proportional to 3,071.92, 4,240.70 and 1,812.60

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Solution

The fourth proportional to 3,071.92, 4,240.70 and 1,812.60 is: 2,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,071.92 : 4,240.70 = 1,812.60 : x
  2. Step 2: Convert to fraction form
    3,071.92/4,240.70 = 1,812.60/x
  3. Step 3: Cross multiply
    3,071.92x = 4,240.70 × 1,812.60
  4. Step 4: Simplify right side
    3,071.92x = 7,686,692.82
  5. Step 5: Solve for x
    x = 7,686,692.82/3,071.92
  6. Step 6: Final answer
    x = 2,502.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.