Home / 3,128.62-4,317.40-1,766.00

Finding the Fourth Proportional to 3,128.62, 4,317.40 and 1,766.00

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Solution

The fourth proportional to 3,128.62, 4,317.40 and 1,766.00 is: 2,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.62 : 4,317.40 = 1,766.00 : x
  2. Step 2: Convert to fraction form
    3,128.62/4,317.40 = 1,766.00/x
  3. Step 3: Cross multiply
    3,128.62x = 4,317.40 × 1,766.00
  4. Step 4: Simplify right side
    3,128.62x = 7,624,502.40
  5. Step 5: Solve for x
    x = 7,624,502.40/3,128.62
  6. Step 6: Final answer
    x = 2,437.02

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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.