Home / 2,165.06-2,987.85-1,233.50

Finding the Fourth Proportional to 2,165.06, 2,987.85 and 1,233.50

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Solution

The fourth proportional to 2,165.06, 2,987.85 and 1,233.50 is: 1,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.06 : 2,987.85 = 1,233.50 : x
  2. Step 2: Convert to fraction form
    2,165.06/2,987.85 = 1,233.50/x
  3. Step 3: Cross multiply
    2,165.06x = 2,987.85 × 1,233.50
  4. Step 4: Simplify right side
    2,165.06x = 3,685,512.98
  5. Step 5: Solve for x
    x = 3,685,512.98/2,165.06
  6. Step 6: Final answer
    x = 1,702.27

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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.