Home / 3,487.61-4,812.88-2,090.36

Finding the Fourth Proportional to 3,487.61, 4,812.88 and 2,090.36

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Solution

The fourth proportional to 3,487.61, 4,812.88 and 2,090.36 is: 2,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.61 : 4,812.88 = 2,090.36 : x
  2. Step 2: Convert to fraction form
    3,487.61/4,812.88 = 2,090.36/x
  3. Step 3: Cross multiply
    3,487.61x = 4,812.88 × 2,090.36
  4. Step 4: Simplify right side
    3,487.61x = 10,060,651.84
  5. Step 5: Solve for x
    x = 10,060,651.84/3,487.61
  6. Step 6: Final answer
    x = 2,884.68

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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.