Home / 1,412.15-2,119.16-535.46

Finding the Fourth Proportional to 1,412.15, 2,119.16 and 535.46

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Solution

The fourth proportional to 1,412.15, 2,119.16 and 535.46 is: 803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412.15 : 2,119.16 = 535.46 : x
  2. Step 2: Convert to fraction form
    1,412.15/2,119.16 = 535.46/x
  3. Step 3: Cross multiply
    1,412.15x = 2,119.16 × 535.46
  4. Step 4: Simplify right side
    1,412.15x = 1,134,716.16
  5. Step 5: Solve for x
    x = 1,134,716.16/1,412.15
  6. Step 6: Final answer
    x = 803.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.