Home / 2,019.63-2,787.30-1,234.20

Finding the Fourth Proportional to 2,019.63, 2,787.30 and 1,234.20

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Solution

The fourth proportional to 2,019.63, 2,787.30 and 1,234.20 is: 1,703.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,019.63 : 2,787.30 = 1,234.20 : x
  2. Step 2: Convert to fraction form
    2,019.63/2,787.30 = 1,234.20/x
  3. Step 3: Cross multiply
    2,019.63x = 2,787.30 × 1,234.20
  4. Step 4: Simplify right side
    2,019.63x = 3,440,085.66
  5. Step 5: Solve for x
    x = 3,440,085.66/2,019.63
  6. Step 6: Final answer
    x = 1,703.32

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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.