Home / 1,581.08-2,369.70-1,119.00

Finding the Fourth Proportional to 1,581.08, 2,369.70 and 1,119.00

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Solution

The fourth proportional to 1,581.08, 2,369.70 and 1,119.00 is: 1,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.08 : 2,369.70 = 1,119.00 : x
  2. Step 2: Convert to fraction form
    1,581.08/2,369.70 = 1,119.00/x
  3. Step 3: Cross multiply
    1,581.08x = 2,369.70 × 1,119.00
  4. Step 4: Simplify right side
    1,581.08x = 2,651,682.45
  5. Step 5: Solve for x
    x = 2,651,682.45/1,581.08
  6. Step 6: Final answer
    x = 1,677.13

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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.