Home / 3,085.30-4,620.53-1,765.05

Finding the Fourth Proportional to 3,085.30, 4,620.53 and 1,765.05

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Solution

The fourth proportional to 3,085.30, 4,620.53 and 1,765.05 is: 2,643.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,085.30 : 4,620.53 = 1,765.05 : x
  2. Step 2: Convert to fraction form
    3,085.30/4,620.53 = 1,765.05/x
  3. Step 3: Cross multiply
    3,085.30x = 4,620.53 × 1,765.05
  4. Step 4: Simplify right side
    3,085.30x = 8,155,434.55
  5. Step 5: Solve for x
    x = 8,155,434.55/3,085.30
  6. Step 6: Final answer
    x = 2,643.32

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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.