Home / 1,778.24-2,665.56-1,007.12

Finding the Fourth Proportional to 1,778.24, 2,665.56 and 1,007.12

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Solution

The fourth proportional to 1,778.24, 2,665.56 and 1,007.12 is: 1,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778.24 : 2,665.56 = 1,007.12 : x
  2. Step 2: Convert to fraction form
    1,778.24/2,665.56 = 1,007.12/x
  3. Step 3: Cross multiply
    1,778.24x = 2,665.56 × 1,007.12
  4. Step 4: Simplify right side
    1,778.24x = 2,684,538.79
  5. Step 5: Solve for x
    x = 2,684,538.79/1,778.24
  6. Step 6: Final answer
    x = 1,509.66

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1.5x scale

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.