Home / 1,618.02-2,228.22-1,540.26

Finding the Fourth Proportional to 1,618.02, 2,228.22 and 1,540.26

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Solution

The fourth proportional to 1,618.02, 2,228.22 and 1,540.26 is: 2,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.02 : 2,228.22 = 1,540.26 : x
  2. Step 2: Convert to fraction form
    1,618.02/2,228.22 = 1,540.26/x
  3. Step 3: Cross multiply
    1,618.02x = 2,228.22 × 1,540.26
  4. Step 4: Simplify right side
    1,618.02x = 3,432,038.14
  5. Step 5: Solve for x
    x = 3,432,038.14/1,618.02
  6. Step 6: Final answer
    x = 2,121.13

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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.