Home / 2,420.55-3,338.42-1,536.57

Finding the Fourth Proportional to 2,420.55, 3,338.42 and 1,536.57

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Solution

The fourth proportional to 2,420.55, 3,338.42 and 1,536.57 is: 2,119.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.55 : 3,338.42 = 1,536.57 : x
  2. Step 2: Convert to fraction form
    2,420.55/3,338.42 = 1,536.57/x
  3. Step 3: Cross multiply
    2,420.55x = 3,338.42 × 1,536.57
  4. Step 4: Simplify right side
    2,420.55x = 5,129,708.34
  5. Step 5: Solve for x
    x = 5,129,708.34/2,420.55
  6. Step 6: Final answer
    x = 2,119.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.