Home / 2,705.55-4,058.87-1,145.55

Finding the Fourth Proportional to 2,705.55, 4,058.87 and 1,145.55

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Solution

The fourth proportional to 2,705.55, 4,058.87 and 1,145.55 is: 1,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,705.55 : 4,058.87 = 1,145.55 : x
  2. Step 2: Convert to fraction form
    2,705.55/4,058.87 = 1,145.55/x
  3. Step 3: Cross multiply
    2,705.55x = 4,058.87 × 1,145.55
  4. Step 4: Simplify right side
    2,705.55x = 4,649,638.53
  5. Step 5: Solve for x
    x = 4,649,638.53/2,705.55
  6. Step 6: Final answer
    x = 1,718.56

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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.