Home / 2,911.75-4,018.30-1,652.85

Finding the Fourth Proportional to 2,911.75, 4,018.30 and 1,652.85

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Solution

The fourth proportional to 2,911.75, 4,018.30 and 1,652.85 is: 2,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.75 : 4,018.30 = 1,652.85 : x
  2. Step 2: Convert to fraction form
    2,911.75/4,018.30 = 1,652.85/x
  3. Step 3: Cross multiply
    2,911.75x = 4,018.30 × 1,652.85
  4. Step 4: Simplify right side
    2,911.75x = 6,641,643.02
  5. Step 5: Solve for x
    x = 6,641,643.02/2,911.75
  6. Step 6: Final answer
    x = 2,280.98

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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.