Home / 2,054.50-2,835.21-1,319.78

Finding the Fourth Proportional to 2,054.50, 2,835.21 and 1,319.78

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Solution

The fourth proportional to 2,054.50, 2,835.21 and 1,319.78 is: 1,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.50 : 2,835.21 = 1,319.78 : x
  2. Step 2: Convert to fraction form
    2,054.50/2,835.21 = 1,319.78/x
  3. Step 3: Cross multiply
    2,054.50x = 2,835.21 × 1,319.78
  4. Step 4: Simplify right side
    2,054.50x = 3,741,853.45
  5. Step 5: Solve for x
    x = 3,741,853.45/2,054.50
  6. Step 6: Final answer
    x = 1,821.30

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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.