Home / 1,536.70-2,119.85-1,039.51

Finding the Fourth Proportional to 1,536.70, 2,119.85 and 1,039.51

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Solution

The fourth proportional to 1,536.70, 2,119.85 and 1,039.51 is: 1,433.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.70 : 2,119.85 = 1,039.51 : x
  2. Step 2: Convert to fraction form
    1,536.70/2,119.85 = 1,039.51/x
  3. Step 3: Cross multiply
    1,536.70x = 2,119.85 × 1,039.51
  4. Step 4: Simplify right side
    1,536.70x = 2,203,605.27
  5. Step 5: Solve for x
    x = 2,203,605.27/1,536.70
  6. Step 6: Final answer
    x = 1,433.99

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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.