Home / 1,577.55-2,161.25-1,518.43

Finding the Fourth Proportional to 1,577.55, 2,161.25 and 1,518.43

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Solution

The fourth proportional to 1,577.55, 2,161.25 and 1,518.43 is: 2,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.55 : 2,161.25 = 1,518.43 : x
  2. Step 2: Convert to fraction form
    1,577.55/2,161.25 = 1,518.43/x
  3. Step 3: Cross multiply
    1,577.55x = 2,161.25 × 1,518.43
  4. Step 4: Simplify right side
    1,577.55x = 3,281,705.23
  5. Step 5: Solve for x
    x = 3,281,705.23/1,577.55
  6. Step 6: Final answer
    x = 2,080.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.