Home / 2,985.06-4,107.33-2,908.74

Finding the Fourth Proportional to 2,985.06, 4,107.33 and 2,908.74

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Solution

The fourth proportional to 2,985.06, 4,107.33 and 2,908.74 is: 4,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.06 : 4,107.33 = 2,908.74 : x
  2. Step 2: Convert to fraction form
    2,985.06/4,107.33 = 2,908.74/x
  3. Step 3: Cross multiply
    2,985.06x = 4,107.33 × 2,908.74
  4. Step 4: Simplify right side
    2,985.06x = 11,947,155.06
  5. Step 5: Solve for x
    x = 11,947,155.06/2,985.06
  6. Step 6: Final answer
    x = 4,002.32

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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.