Home / 2,830.12-4,243.80-1,660.50

Finding the Fourth Proportional to 2,830.12, 4,243.80 and 1,660.50

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Solution

The fourth proportional to 2,830.12, 4,243.80 and 1,660.50 is: 2,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.12 : 4,243.80 = 1,660.50 : x
  2. Step 2: Convert to fraction form
    2,830.12/4,243.80 = 1,660.50/x
  3. Step 3: Cross multiply
    2,830.12x = 4,243.80 × 1,660.50
  4. Step 4: Simplify right side
    2,830.12x = 7,046,829.90
  5. Step 5: Solve for x
    x = 7,046,829.90/2,830.12
  6. Step 6: Final answer
    x = 2,489.94

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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.