Home / 3,405.02-5,106.99-1,325.98

Finding the Fourth Proportional to 3,405.02, 5,106.99 and 1,325.98

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Solution

The fourth proportional to 3,405.02, 5,106.99 and 1,325.98 is: 1,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.02 : 5,106.99 = 1,325.98 : x
  2. Step 2: Convert to fraction form
    3,405.02/5,106.99 = 1,325.98/x
  3. Step 3: Cross multiply
    3,405.02x = 5,106.99 × 1,325.98
  4. Step 4: Simplify right side
    3,405.02x = 6,771,766.60
  5. Step 5: Solve for x
    x = 6,771,766.60/3,405.02
  6. Step 6: Final answer
    x = 1,988.76

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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.