Home / 2,856.90-4,280.66-1,758.95

Finding the Fourth Proportional to 2,856.90, 4,280.66 and 1,758.95

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Solution

The fourth proportional to 2,856.90, 4,280.66 and 1,758.95 is: 2,635.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.90 : 4,280.66 = 1,758.95 : x
  2. Step 2: Convert to fraction form
    2,856.90/4,280.66 = 1,758.95/x
  3. Step 3: Cross multiply
    2,856.90x = 4,280.66 × 1,758.95
  4. Step 4: Simplify right side
    2,856.90x = 7,529,466.91
  5. Step 5: Solve for x
    x = 7,529,466.91/2,856.90
  6. Step 6: Final answer
    x = 2,635.54

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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.