Home / 2,170.06-2,994.34-1,285.72

Finding the Fourth Proportional to 2,170.06, 2,994.34 and 1,285.72

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Solution

The fourth proportional to 2,170.06, 2,994.34 and 1,285.72 is: 1,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.06 : 2,994.34 = 1,285.72 : x
  2. Step 2: Convert to fraction form
    2,170.06/2,994.34 = 1,285.72/x
  3. Step 3: Cross multiply
    2,170.06x = 2,994.34 × 1,285.72
  4. Step 4: Simplify right side
    2,170.06x = 3,849,864.64
  5. Step 5: Solve for x
    x = 3,849,864.64/2,170.06
  6. Step 6: Final answer
    x = 1,774.09

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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.