Home / 2,802.12-3,866.74-1,622.98

Finding the Fourth Proportional to 2,802.12, 3,866.74 and 1,622.98

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Solution

The fourth proportional to 2,802.12, 3,866.74 and 1,622.98 is: 2,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.12 : 3,866.74 = 1,622.98 : x
  2. Step 2: Convert to fraction form
    2,802.12/3,866.74 = 1,622.98/x
  3. Step 3: Cross multiply
    2,802.12x = 3,866.74 × 1,622.98
  4. Step 4: Simplify right side
    2,802.12x = 6,275,641.69
  5. Step 5: Solve for x
    x = 6,275,641.69/2,802.12
  6. Step 6: Final answer
    x = 2,239.60

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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.