Home / 2,014.59-2,780.13-1,228.64

Finding the Fourth Proportional to 2,014.59, 2,780.13 and 1,228.64

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Solution

The fourth proportional to 2,014.59, 2,780.13 and 1,228.64 is: 1,695.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,014.59 : 2,780.13 = 1,228.64 : x
  2. Step 2: Convert to fraction form
    2,014.59/2,780.13 = 1,228.64/x
  3. Step 3: Cross multiply
    2,014.59x = 2,780.13 × 1,228.64
  4. Step 4: Simplify right side
    2,014.59x = 3,415,765.02
  5. Step 5: Solve for x
    x = 3,415,765.02/2,014.59
  6. Step 6: Final answer
    x = 1,695.51

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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.