Home / 1,816.05-2,507.36-1,395.63

Finding the Fourth Proportional to 1,816.05, 2,507.36 and 1,395.63

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Solution

The fourth proportional to 1,816.05, 2,507.36 and 1,395.63 is: 1,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.05 : 2,507.36 = 1,395.63 : x
  2. Step 2: Convert to fraction form
    1,816.05/2,507.36 = 1,395.63/x
  3. Step 3: Cross multiply
    1,816.05x = 2,507.36 × 1,395.63
  4. Step 4: Simplify right side
    1,816.05x = 3,499,339.86
  5. Step 5: Solve for x
    x = 3,499,339.86/1,816.05
  6. Step 6: Final answer
    x = 1,926.90

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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.