Home / 3,123.51-4,312.22-2,076.99

Finding the Fourth Proportional to 3,123.51, 4,312.22 and 2,076.99

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Solution

The fourth proportional to 3,123.51, 4,312.22 and 2,076.99 is: 2,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.51 : 4,312.22 = 2,076.99 : x
  2. Step 2: Convert to fraction form
    3,123.51/4,312.22 = 2,076.99/x
  3. Step 3: Cross multiply
    3,123.51x = 4,312.22 × 2,076.99
  4. Step 4: Simplify right side
    3,123.51x = 8,956,427.43
  5. Step 5: Solve for x
    x = 8,956,427.43/3,123.51
  6. Step 6: Final answer
    x = 2,867.42

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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.