Home / 3,123.50-4,685.29-1,368.14

Finding the Fourth Proportional to 3,123.50, 4,685.29 and 1,368.14

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Solution

The fourth proportional to 3,123.50, 4,685.29 and 1,368.14 is: 2,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,123.50 : 4,685.29 = 1,368.14 : x
  2. Step 2: Convert to fraction form
    3,123.50/4,685.29 = 1,368.14/x
  3. Step 3: Cross multiply
    3,123.50x = 4,685.29 × 1,368.14
  4. Step 4: Simplify right side
    3,123.50x = 6,410,105.81
  5. Step 5: Solve for x
    x = 6,410,105.81/3,123.50
  6. Step 6: Final answer
    x = 2,052.22

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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.