Home / 1,889.63-2,821.70-1,543.62

Finding the Fourth Proportional to 1,889.63, 2,821.70 and 1,543.62

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Solution

The fourth proportional to 1,889.63, 2,821.70 and 1,543.62 is: 2,305.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.63 : 2,821.70 = 1,543.62 : x
  2. Step 2: Convert to fraction form
    1,889.63/2,821.70 = 1,543.62/x
  3. Step 3: Cross multiply
    1,889.63x = 2,821.70 × 1,543.62
  4. Step 4: Simplify right side
    1,889.63x = 4,355,646.99
  5. Step 5: Solve for x
    x = 4,355,646.99/1,889.63
  6. Step 6: Final answer
    x = 2,305.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.