Home / 1,394.24-2,088.64-1,119.12

Finding the Fourth Proportional to 1,394.24, 2,088.64 and 1,119.12

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Solution

The fourth proportional to 1,394.24, 2,088.64 and 1,119.12 is: 1,676.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394.24 : 2,088.64 = 1,119.12 : x
  2. Step 2: Convert to fraction form
    1,394.24/2,088.64 = 1,119.12/x
  3. Step 3: Cross multiply
    1,394.24x = 2,088.64 × 1,119.12
  4. Step 4: Simplify right side
    1,394.24x = 2,337,438.80
  5. Step 5: Solve for x
    x = 2,337,438.80/1,394.24
  6. Step 6: Final answer
    x = 1,676.50

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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.