Home / 1,816.08-2,505-1,395.78

Finding the Fourth Proportional to 1,816.08, 2,505 and 1,395.78

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Solution

The fourth proportional to 1,816.08, 2,505 and 1,395.78 is: 1,925.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.08 : 2,505 = 1,395.78 : x
  2. Step 2: Convert to fraction form
    1,816.08/2,505 = 1,395.78/x
  3. Step 3: Cross multiply
    1,816.08x = 2,505 × 1,395.78
  4. Step 4: Simplify right side
    1,816.08x = 3,496,428.90
  5. Step 5: Solve for x
    x = 3,496,428.90/1,816.08
  6. Step 6: Final answer
    x = 1,925.26

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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.