Home / 2,184.53-3,014.11-1,288.32

Finding the Fourth Proportional to 2,184.53, 3,014.11 and 1,288.32

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Solution

The fourth proportional to 2,184.53, 3,014.11 and 1,288.32 is: 1,777.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.53 : 3,014.11 = 1,288.32 : x
  2. Step 2: Convert to fraction form
    2,184.53/3,014.11 = 1,288.32/x
  3. Step 3: Cross multiply
    2,184.53x = 3,014.11 × 1,288.32
  4. Step 4: Simplify right side
    2,184.53x = 3,883,128.50
  5. Step 5: Solve for x
    x = 3,883,128.50/2,184.53
  6. Step 6: Final answer
    x = 1,777.56

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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.