Home / 1,550.58-2,135.13-1,340.37

Finding the Fourth Proportional to 1,550.58, 2,135.13 and 1,340.37

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Solution

The fourth proportional to 1,550.58, 2,135.13 and 1,340.37 is: 1,845.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.58 : 2,135.13 = 1,340.37 : x
  2. Step 2: Convert to fraction form
    1,550.58/2,135.13 = 1,340.37/x
  3. Step 3: Cross multiply
    1,550.58x = 2,135.13 × 1,340.37
  4. Step 4: Simplify right side
    1,550.58x = 2,861,864.20
  5. Step 5: Solve for x
    x = 2,861,864.20/1,550.58
  6. Step 6: Final answer
    x = 1,845.67

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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.