Home / 1,405.04-2,115.94-1,224.68

Finding the Fourth Proportional to 1,405.04, 2,115.94 and 1,224.68

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Solution

The fourth proportional to 1,405.04, 2,115.94 and 1,224.68 is: 1,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.04 : 2,115.94 = 1,224.68 : x
  2. Step 2: Convert to fraction form
    1,405.04/2,115.94 = 1,224.68/x
  3. Step 3: Cross multiply
    1,405.04x = 2,115.94 × 1,224.68
  4. Step 4: Simplify right side
    1,405.04x = 2,591,343.28
  5. Step 5: Solve for x
    x = 2,591,343.28/1,405.04
  6. Step 6: Final answer
    x = 1,844.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.