Home / 2,094.70-3,137.85-1,312.30

Finding the Fourth Proportional to 2,094.70, 3,137.85 and 1,312.30

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Solution

The fourth proportional to 2,094.70, 3,137.85 and 1,312.30 is: 1,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,094.70 : 3,137.85 = 1,312.30 : x
  2. Step 2: Convert to fraction form
    2,094.70/3,137.85 = 1,312.30/x
  3. Step 3: Cross multiply
    2,094.70x = 3,137.85 × 1,312.30
  4. Step 4: Simplify right side
    2,094.70x = 4,117,800.56
  5. Step 5: Solve for x
    x = 4,117,800.56/2,094.70
  6. Step 6: Final answer
    x = 1,965.82

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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.