Home / 2,817.77-4,220.99-1,314.67

Finding the Fourth Proportional to 2,817.77, 4,220.99 and 1,314.67

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Solution

The fourth proportional to 2,817.77, 4,220.99 and 1,314.67 is: 1,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.77 : 4,220.99 = 1,314.67 : x
  2. Step 2: Convert to fraction form
    2,817.77/4,220.99 = 1,314.67/x
  3. Step 3: Cross multiply
    2,817.77x = 4,220.99 × 1,314.67
  4. Step 4: Simplify right side
    2,817.77x = 5,549,187.82
  5. Step 5: Solve for x
    x = 5,549,187.82/2,817.77
  6. Step 6: Final answer
    x = 1,969.35

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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.