Home / 1,555.73-2,333.41-581.57

Finding the Fourth Proportional to 1,555.73, 2,333.41 and 581.57

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Solution

The fourth proportional to 1,555.73, 2,333.41 and 581.57 is: 872.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.73 : 2,333.41 = 581.57 : x
  2. Step 2: Convert to fraction form
    1,555.73/2,333.41 = 581.57/x
  3. Step 3: Cross multiply
    1,555.73x = 2,333.41 × 581.57
  4. Step 4: Simplify right side
    1,555.73x = 1,357,041.25
  5. Step 5: Solve for x
    x = 1,357,041.25/1,555.73
  6. Step 6: Final answer
    x = 872.29

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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.