Home / 1,555.37-2,333.66-581.55

Finding the Fourth Proportional to 1,555.37, 2,333.66 and 581.55

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Solution

The fourth proportional to 1,555.37, 2,333.66 and 581.55 is: 872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.37 : 2,333.66 = 581.55 : x
  2. Step 2: Convert to fraction form
    1,555.37/2,333.66 = 581.55/x
  3. Step 3: Cross multiply
    1,555.37x = 2,333.66 × 581.55
  4. Step 4: Simplify right side
    1,555.37x = 1,357,137.07
  5. Step 5: Solve for x
    x = 1,357,137.07/1,555.37
  6. Step 6: Final answer
    x = 872.55

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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.