Home / 2,639.40-3,643.02-1,895.04

Finding the Fourth Proportional to 2,639.40, 3,643.02 and 1,895.04

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Solution

The fourth proportional to 2,639.40, 3,643.02 and 1,895.04 is: 2,615.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.40 : 3,643.02 = 1,895.04 : x
  2. Step 2: Convert to fraction form
    2,639.40/3,643.02 = 1,895.04/x
  3. Step 3: Cross multiply
    2,639.40x = 3,643.02 × 1,895.04
  4. Step 4: Simplify right side
    2,639.40x = 6,903,668.62
  5. Step 5: Solve for x
    x = 6,903,668.62/2,639.40
  6. Step 6: Final answer
    x = 2,615.62

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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.