Home / 3,072.21-4,238.30-2,077.13

Finding the Fourth Proportional to 3,072.21, 4,238.30 and 2,077.13

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Solution

The fourth proportional to 3,072.21, 4,238.30 and 2,077.13 is: 2,865.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.21 : 4,238.30 = 2,077.13 : x
  2. Step 2: Convert to fraction form
    3,072.21/4,238.30 = 2,077.13/x
  3. Step 3: Cross multiply
    3,072.21x = 4,238.30 × 2,077.13
  4. Step 4: Simplify right side
    3,072.21x = 8,803,484.08
  5. Step 5: Solve for x
    x = 8,803,484.08/3,072.21
  6. Step 6: Final answer
    x = 2,865.52

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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.