Home / 3,135.90-4,327.64-1,809.58

Finding the Fourth Proportional to 3,135.90, 4,327.64 and 1,809.58

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Solution

The fourth proportional to 3,135.90, 4,327.64 and 1,809.58 is: 2,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.90 : 4,327.64 = 1,809.58 : x
  2. Step 2: Convert to fraction form
    3,135.90/4,327.64 = 1,809.58/x
  3. Step 3: Cross multiply
    3,135.90x = 4,327.64 × 1,809.58
  4. Step 4: Simplify right side
    3,135.90x = 7,831,210.79
  5. Step 5: Solve for x
    x = 7,831,210.79/3,135.90
  6. Step 6: Final answer
    x = 2,497.28

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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.