Home / 2,018.80-2,785.62-1,134.60

Finding the Fourth Proportional to 2,018.80, 2,785.62 and 1,134.60

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Solution

The fourth proportional to 2,018.80, 2,785.62 and 1,134.60 is: 1,565.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.80 : 2,785.62 = 1,134.60 : x
  2. Step 2: Convert to fraction form
    2,018.80/2,785.62 = 1,134.60/x
  3. Step 3: Cross multiply
    2,018.80x = 2,785.62 × 1,134.60
  4. Step 4: Simplify right side
    2,018.80x = 3,160,564.45
  5. Step 5: Solve for x
    x = 3,160,564.45/2,018.80
  6. Step 6: Final answer
    x = 1,565.57

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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.