Home / 1,108.81-1,528.86-1,034.65

Finding the Fourth Proportional to 1,108.81, 1,528.86 and 1,034.65

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Solution

The fourth proportional to 1,108.81, 1,528.86 and 1,034.65 is: 1,426.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108.81 : 1,528.86 = 1,034.65 : x
  2. Step 2: Convert to fraction form
    1,108.81/1,528.86 = 1,034.65/x
  3. Step 3: Cross multiply
    1,108.81x = 1,528.86 × 1,034.65
  4. Step 4: Simplify right side
    1,108.81x = 1,581,835.00
  5. Step 5: Solve for x
    x = 1,581,835.00/1,108.81
  6. Step 6: Final answer
    x = 1,426.61

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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.