Home / 1,395.08-2,091.46-1,088.28

Finding the Fourth Proportional to 1,395.08, 2,091.46 and 1,088.28

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Solution

The fourth proportional to 1,395.08, 2,091.46 and 1,088.28 is: 1,631.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.08 : 2,091.46 = 1,088.28 : x
  2. Step 2: Convert to fraction form
    1,395.08/2,091.46 = 1,088.28/x
  3. Step 3: Cross multiply
    1,395.08x = 2,091.46 × 1,088.28
  4. Step 4: Simplify right side
    1,395.08x = 2,276,094.09
  5. Step 5: Solve for x
    x = 2,276,094.09/1,395.08
  6. Step 6: Final answer
    x = 1,631.52

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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.