Home / 3,783.40-5,673.65-1,808.50

Finding the Fourth Proportional to 3,783.40, 5,673.65 and 1,808.50

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Solution

The fourth proportional to 3,783.40, 5,673.65 and 1,808.50 is: 2,712.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.40 : 5,673.65 = 1,808.50 : x
  2. Step 2: Convert to fraction form
    3,783.40/5,673.65 = 1,808.50/x
  3. Step 3: Cross multiply
    3,783.40x = 5,673.65 × 1,808.50
  4. Step 4: Simplify right side
    3,783.40x = 10,260,797.32
  5. Step 5: Solve for x
    x = 10,260,797.32/3,783.40
  6. Step 6: Final answer
    x = 2,712.05

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1.5x scale

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.