Home / 1,615.02-2,409.15-1,418.19

Finding the Fourth Proportional to 1,615.02, 2,409.15 and 1,418.19

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Solution

The fourth proportional to 1,615.02, 2,409.15 and 1,418.19 is: 2,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.02 : 2,409.15 = 1,418.19 : x
  2. Step 2: Convert to fraction form
    1,615.02/2,409.15 = 1,418.19/x
  3. Step 3: Cross multiply
    1,615.02x = 2,409.15 × 1,418.19
  4. Step 4: Simplify right side
    1,615.02x = 3,416,632.44
  5. Step 5: Solve for x
    x = 3,416,632.44/1,615.02
  6. Step 6: Final answer
    x = 2,115.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.