Home / 1,225.38-1,827.74-1,028.08

Finding the Fourth Proportional to 1,225.38, 1,827.74 and 1,028.08

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Solution

The fourth proportional to 1,225.38, 1,827.74 and 1,028.08 is: 1,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.38 : 1,827.74 = 1,028.08 : x
  2. Step 2: Convert to fraction form
    1,225.38/1,827.74 = 1,028.08/x
  3. Step 3: Cross multiply
    1,225.38x = 1,827.74 × 1,028.08
  4. Step 4: Simplify right side
    1,225.38x = 1,879,062.94
  5. Step 5: Solve for x
    x = 1,879,062.94/1,225.38
  6. Step 6: Final answer
    x = 1,533.45

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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.