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Finding the Fourth Proportional to 2,888.94, 3,984.47 and 2,491.26

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Solution

The fourth proportional to 2,888.94, 3,984.47 and 2,491.26 is: 3,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.94 : 3,984.47 = 2,491.26 : x
  2. Step 2: Convert to fraction form
    2,888.94/3,984.47 = 2,491.26/x
  3. Step 3: Cross multiply
    2,888.94x = 3,984.47 × 2,491.26
  4. Step 4: Simplify right side
    2,888.94x = 9,926,350.73
  5. Step 5: Solve for x
    x = 9,926,350.73/2,888.94
  6. Step 6: Final answer
    x = 3,435.98

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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.