Home / 3,919.16-5,870.58-2,354.20

Finding the Fourth Proportional to 3,919.16, 5,870.58 and 2,354.20

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Solution

The fourth proportional to 3,919.16, 5,870.58 and 2,354.20 is: 3,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.16 : 5,870.58 = 2,354.20 : x
  2. Step 2: Convert to fraction form
    3,919.16/5,870.58 = 2,354.20/x
  3. Step 3: Cross multiply
    3,919.16x = 5,870.58 × 2,354.20
  4. Step 4: Simplify right side
    3,919.16x = 13,820,519.44
  5. Step 5: Solve for x
    x = 13,820,519.44/3,919.16
  6. Step 6: Final answer
    x = 3,526.40

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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.