Home / 2,465.40-3,690.90-2,206.20

Finding the Fourth Proportional to 2,465.40, 3,690.90 and 2,206.20

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Solution

The fourth proportional to 2,465.40, 3,690.90 and 2,206.20 is: 3,302.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,465.40 : 3,690.90 = 2,206.20 : x
  2. Step 2: Convert to fraction form
    2,465.40/3,690.90 = 2,206.20/x
  3. Step 3: Cross multiply
    2,465.40x = 3,690.90 × 2,206.20
  4. Step 4: Simplify right side
    2,465.40x = 8,142,863.58
  5. Step 5: Solve for x
    x = 8,142,863.58/2,465.40
  6. Step 6: Final answer
    x = 3,302.86

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1.5x scale

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.