Home / 3,012.52-4,156.86-1,833.40

Finding the Fourth Proportional to 3,012.52, 4,156.86 and 1,833.40

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Solution

The fourth proportional to 3,012.52, 4,156.86 and 1,833.40 is: 2,529.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,012.52 : 4,156.86 = 1,833.40 : x
  2. Step 2: Convert to fraction form
    3,012.52/4,156.86 = 1,833.40/x
  3. Step 3: Cross multiply
    3,012.52x = 4,156.86 × 1,833.40
  4. Step 4: Simplify right side
    3,012.52x = 7,621,187.12
  5. Step 5: Solve for x
    x = 7,621,187.12/3,012.52
  6. Step 6: Final answer
    x = 2,529.84

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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.