Home / 1,108.02-1,529.09-610.67

Finding the Fourth Proportional to 1,108.02, 1,529.09 and 610.67

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Solution

The fourth proportional to 1,108.02, 1,529.09 and 610.67 is: 842.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.02 : 1,529.09 = 610.67 : x
  2. Step 2: Convert to fraction form
    1,108.02/1,529.09 = 610.67/x
  3. Step 3: Cross multiply
    1,108.02x = 1,529.09 × 610.67
  4. Step 4: Simplify right side
    1,108.02x = 933,769.39
  5. Step 5: Solve for x
    x = 933,769.39/1,108.02
  6. Step 6: Final answer
    x = 842.74

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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.