Home / 2,018.60-2,785.74-1,134.20

Finding the Fourth Proportional to 2,018.60, 2,785.74 and 1,134.20

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Solution

The fourth proportional to 2,018.60, 2,785.74 and 1,134.20 is: 1,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.60 : 2,785.74 = 1,134.20 : x
  2. Step 2: Convert to fraction form
    2,018.60/2,785.74 = 1,134.20/x
  3. Step 3: Cross multiply
    2,018.60x = 2,785.74 × 1,134.20
  4. Step 4: Simplify right side
    2,018.60x = 3,159,586.31
  5. Step 5: Solve for x
    x = 3,159,586.31/2,018.60
  6. Step 6: Final answer
    x = 1,565.24

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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.