Home / 1,555.90-2,332.70-733.71

Finding the Fourth Proportional to 1,555.90, 2,332.70 and 733.71

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Solution

The fourth proportional to 1,555.90, 2,332.70 and 733.71 is: 1,100.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555.90 : 2,332.70 = 733.71 : x
  2. Step 2: Convert to fraction form
    1,555.90/2,332.70 = 733.71/x
  3. Step 3: Cross multiply
    1,555.90x = 2,332.70 × 733.71
  4. Step 4: Simplify right side
    1,555.90x = 1,711,525.32
  5. Step 5: Solve for x
    x = 1,711,525.32/1,555.90
  6. Step 6: Final answer
    x = 1,100.02

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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.