Home / 2,379.55-3,283.74-1,317.39

Finding the Fourth Proportional to 2,379.55, 3,283.74 and 1,317.39

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Solution

The fourth proportional to 2,379.55, 3,283.74 and 1,317.39 is: 1,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.55 : 3,283.74 = 1,317.39 : x
  2. Step 2: Convert to fraction form
    2,379.55/3,283.74 = 1,317.39/x
  3. Step 3: Cross multiply
    2,379.55x = 3,283.74 × 1,317.39
  4. Step 4: Simplify right side
    2,379.55x = 4,325,966.24
  5. Step 5: Solve for x
    x = 4,325,966.24/2,379.55
  6. Step 6: Final answer
    x = 1,817.98

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1.5x scale

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.