Home / 3,176.60-4,379.40-2,230.74

Finding the Fourth Proportional to 3,176.60, 4,379.40 and 2,230.74

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Solution

The fourth proportional to 3,176.60, 4,379.40 and 2,230.74 is: 3,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.60 : 4,379.40 = 2,230.74 : x
  2. Step 2: Convert to fraction form
    3,176.60/4,379.40 = 2,230.74/x
  3. Step 3: Cross multiply
    3,176.60x = 4,379.40 × 2,230.74
  4. Step 4: Simplify right side
    3,176.60x = 9,769,302.76
  5. Step 5: Solve for x
    x = 9,769,302.76/3,176.60
  6. Step 6: Final answer
    x = 3,075.40

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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.