Home / 2,903.40-4,006.89-1,644.45

Finding the Fourth Proportional to 2,903.40, 4,006.89 and 1,644.45

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Solution

The fourth proportional to 2,903.40, 4,006.89 and 1,644.45 is: 2,269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.40 : 4,006.89 = 1,644.45 : x
  2. Step 2: Convert to fraction form
    2,903.40/4,006.89 = 1,644.45/x
  3. Step 3: Cross multiply
    2,903.40x = 4,006.89 × 1,644.45
  4. Step 4: Simplify right side
    2,903.40x = 6,589,102.00
  5. Step 5: Solve for x
    x = 6,589,102.00/2,903.40
  6. Step 6: Final answer
    x = 2,269.44

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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.