Home / 1,912.18-2,869.08-614.02

Finding the Fourth Proportional to 1,912.18, 2,869.08 and 614.02

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Solution

The fourth proportional to 1,912.18, 2,869.08 and 614.02 is: 921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.18 : 2,869.08 = 614.02 : x
  2. Step 2: Convert to fraction form
    1,912.18/2,869.08 = 614.02/x
  3. Step 3: Cross multiply
    1,912.18x = 2,869.08 × 614.02
  4. Step 4: Simplify right side
    1,912.18x = 1,761,672.50
  5. Step 5: Solve for x
    x = 1,761,672.50/1,912.18
  6. Step 6: Final answer
    x = 921.29

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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.