Home / 3,135.02-4,325.31-1,808.43

Finding the Fourth Proportional to 3,135.02, 4,325.31 and 1,808.43

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Solution

The fourth proportional to 3,135.02, 4,325.31 and 1,808.43 is: 2,495.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.02 : 4,325.31 = 1,808.43 : x
  2. Step 2: Convert to fraction form
    3,135.02/4,325.31 = 1,808.43/x
  3. Step 3: Cross multiply
    3,135.02x = 4,325.31 × 1,808.43
  4. Step 4: Simplify right side
    3,135.02x = 7,822,020.36
  5. Step 5: Solve for x
    x = 7,822,020.36/3,135.02
  6. Step 6: Final answer
    x = 2,495.05

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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.