Home / 1,105.18-1,525.14-607.81

Finding the Fourth Proportional to 1,105.18, 1,525.14 and 607.81

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Solution

The fourth proportional to 1,105.18, 1,525.14 and 607.81 is: 838.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105.18 : 1,525.14 = 607.81 : x
  2. Step 2: Convert to fraction form
    1,105.18/1,525.14 = 607.81/x
  3. Step 3: Cross multiply
    1,105.18x = 1,525.14 × 607.81
  4. Step 4: Simplify right side
    1,105.18x = 926,995.34
  5. Step 5: Solve for x
    x = 926,995.34/1,105.18
  6. Step 6: Final answer
    x = 838.77

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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.