Home / 1,552.35-2,140.25-1,020.18

Finding the Fourth Proportional to 1,552.35, 2,140.25 and 1,020.18

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Solution

The fourth proportional to 1,552.35, 2,140.25 and 1,020.18 is: 1,406.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,552.35 : 2,140.25 = 1,020.18 : x
  2. Step 2: Convert to fraction form
    1,552.35/2,140.25 = 1,020.18/x
  3. Step 3: Cross multiply
    1,552.35x = 2,140.25 × 1,020.18
  4. Step 4: Simplify right side
    1,552.35x = 2,183,435.14
  5. Step 5: Solve for x
    x = 2,183,435.14/1,552.35
  6. Step 6: Final answer
    x = 1,406.54

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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.