Home / 1,530.99-2,111.83-1,236.66

Finding the Fourth Proportional to 1,530.99, 2,111.83 and 1,236.66

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Solution

The fourth proportional to 1,530.99, 2,111.83 and 1,236.66 is: 1,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,530.99 : 2,111.83 = 1,236.66 : x
  2. Step 2: Convert to fraction form
    1,530.99/2,111.83 = 1,236.66/x
  3. Step 3: Cross multiply
    1,530.99x = 2,111.83 × 1,236.66
  4. Step 4: Simplify right side
    1,530.99x = 2,611,615.69
  5. Step 5: Solve for x
    x = 2,611,615.69/1,530.99
  6. Step 6: Final answer
    x = 1,705.83

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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.