Home / 2,170.02-2,994.48-1,285.74

Finding the Fourth Proportional to 2,170.02, 2,994.48 and 1,285.74

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Solution

The fourth proportional to 2,170.02, 2,994.48 and 1,285.74 is: 1,774.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.02 : 2,994.48 = 1,285.74 : x
  2. Step 2: Convert to fraction form
    2,170.02/2,994.48 = 1,285.74/x
  3. Step 3: Cross multiply
    2,170.02x = 2,994.48 × 1,285.74
  4. Step 4: Simplify right side
    2,170.02x = 3,850,122.72
  5. Step 5: Solve for x
    x = 3,850,122.72/2,170.02
  6. Step 6: Final answer
    x = 1,774.23

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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.