Home / 2,674.20-4,011.30-1,690.05

Finding the Fourth Proportional to 2,674.20, 4,011.30 and 1,690.05

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Solution

The fourth proportional to 2,674.20, 4,011.30 and 1,690.05 is: 2,535.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,674.20 : 4,011.30 = 1,690.05 : x
  2. Step 2: Convert to fraction form
    2,674.20/4,011.30 = 1,690.05/x
  3. Step 3: Cross multiply
    2,674.20x = 4,011.30 × 1,690.05
  4. Step 4: Simplify right side
    2,674.20x = 6,779,297.57
  5. Step 5: Solve for x
    x = 6,779,297.57/2,674.20
  6. Step 6: Final answer
    x = 2,535.08

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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.