Home / 2,990.31-4,485.46-1,833.63

Finding the Fourth Proportional to 2,990.31, 4,485.46 and 1,833.63

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Solution

The fourth proportional to 2,990.31, 4,485.46 and 1,833.63 is: 2,750.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.31 : 4,485.46 = 1,833.63 : x
  2. Step 2: Convert to fraction form
    2,990.31/4,485.46 = 1,833.63/x
  3. Step 3: Cross multiply
    2,990.31x = 4,485.46 × 1,833.63
  4. Step 4: Simplify right side
    2,990.31x = 8,224,674.02
  5. Step 5: Solve for x
    x = 8,224,674.02/2,990.31
  6. Step 6: Final answer
    x = 2,750.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.