Home / 1,544.08-2,129.34-1,019.20

Finding the Fourth Proportional to 1,544.08, 2,129.34 and 1,019.20

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Solution

The fourth proportional to 1,544.08, 2,129.34 and 1,019.20 is: 1,405.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.08 : 2,129.34 = 1,019.20 : x
  2. Step 2: Convert to fraction form
    1,544.08/2,129.34 = 1,019.20/x
  3. Step 3: Cross multiply
    1,544.08x = 2,129.34 × 1,019.20
  4. Step 4: Simplify right side
    1,544.08x = 2,170,223.33
  5. Step 5: Solve for x
    x = 2,170,223.33/1,544.08
  6. Step 6: Final answer
    x = 1,405.51

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Double scale
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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.