Home / 4,289.65-5,919.78-2,611.13

Finding the Fourth Proportional to 4,289.65, 5,919.78 and 2,611.13

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Solution

The fourth proportional to 4,289.65, 5,919.78 and 2,611.13 is: 3,603.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.65 : 5,919.78 = 2,611.13 : x
  2. Step 2: Convert to fraction form
    4,289.65/5,919.78 = 2,611.13/x
  3. Step 3: Cross multiply
    4,289.65x = 5,919.78 × 2,611.13
  4. Step 4: Simplify right side
    4,289.65x = 15,457,315.15
  5. Step 5: Solve for x
    x = 15,457,315.15/4,289.65
  6. Step 6: Final answer
    x = 3,603.40

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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.