Home / 1,808.30-2,715.54-1,119.05

Finding the Fourth Proportional to 1,808.30, 2,715.54 and 1,119.05

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Solution

The fourth proportional to 1,808.30, 2,715.54 and 1,119.05 is: 1,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.30 : 2,715.54 = 1,119.05 : x
  2. Step 2: Convert to fraction form
    1,808.30/2,715.54 = 1,119.05/x
  3. Step 3: Cross multiply
    1,808.30x = 2,715.54 × 1,119.05
  4. Step 4: Simplify right side
    1,808.30x = 3,038,825.04
  5. Step 5: Solve for x
    x = 3,038,825.04/1,808.30
  6. Step 6: Final answer
    x = 1,680.49

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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.