Home / 2,420.35-3,340.62-1,535.99

Finding the Fourth Proportional to 2,420.35, 3,340.62 and 1,535.99

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Solution

The fourth proportional to 2,420.35, 3,340.62 and 1,535.99 is: 2,120.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.35 : 3,340.62 = 1,535.99 : x
  2. Step 2: Convert to fraction form
    2,420.35/3,340.62 = 1,535.99/x
  3. Step 3: Cross multiply
    2,420.35x = 3,340.62 × 1,535.99
  4. Step 4: Simplify right side
    2,420.35x = 5,131,142.21
  5. Step 5: Solve for x
    x = 5,131,142.21/2,420.35
  6. Step 6: Final answer
    x = 2,120.00

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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.