Home / 3,485.81-5,228.76-1,020.68

Finding the Fourth Proportional to 3,485.81, 5,228.76 and 1,020.68

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Solution

The fourth proportional to 3,485.81, 5,228.76 and 1,020.68 is: 1,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.81 : 5,228.76 = 1,020.68 : x
  2. Step 2: Convert to fraction form
    3,485.81/5,228.76 = 1,020.68/x
  3. Step 3: Cross multiply
    3,485.81x = 5,228.76 × 1,020.68
  4. Step 4: Simplify right side
    3,485.81x = 5,336,864.61
  5. Step 5: Solve for x
    x = 5,336,864.61/3,485.81
  6. Step 6: Final answer
    x = 1,531.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.