Home / 2,829.49-4,239.42-1,840.79

Finding the Fourth Proportional to 2,829.49, 4,239.42 and 1,840.79

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Solution

The fourth proportional to 2,829.49, 4,239.42 and 1,840.79 is: 2,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.49 : 4,239.42 = 1,840.79 : x
  2. Step 2: Convert to fraction form
    2,829.49/4,239.42 = 1,840.79/x
  3. Step 3: Cross multiply
    2,829.49x = 4,239.42 × 1,840.79
  4. Step 4: Simplify right side
    2,829.49x = 7,803,885.64
  5. Step 5: Solve for x
    x = 7,803,885.64/2,829.49
  6. Step 6: Final answer
    x = 2,758.06

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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.