Home / 3,091.18-4,638.36-1,705.63

Finding the Fourth Proportional to 3,091.18, 4,638.36 and 1,705.63

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Solution

The fourth proportional to 3,091.18, 4,638.36 and 1,705.63 is: 2,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.18 : 4,638.36 = 1,705.63 : x
  2. Step 2: Convert to fraction form
    3,091.18/4,638.36 = 1,705.63/x
  3. Step 3: Cross multiply
    3,091.18x = 4,638.36 × 1,705.63
  4. Step 4: Simplify right side
    3,091.18x = 7,911,325.97
  5. Step 5: Solve for x
    x = 7,911,325.97/3,091.18
  6. Step 6: Final answer
    x = 2,559.32

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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.