Home / 2,019.74-2,787.28-1,357.44

Finding the Fourth Proportional to 2,019.74, 2,787.28 and 1,357.44

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Solution

The fourth proportional to 2,019.74, 2,787.28 and 1,357.44 is: 1,873.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.74 : 2,787.28 = 1,357.44 : x
  2. Step 2: Convert to fraction form
    2,019.74/2,787.28 = 1,357.44/x
  3. Step 3: Cross multiply
    2,019.74x = 2,787.28 × 1,357.44
  4. Step 4: Simplify right side
    2,019.74x = 3,783,565.36
  5. Step 5: Solve for x
    x = 3,783,565.36/2,019.74
  6. Step 6: Final answer
    x = 1,873.29

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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.