Home / 1,816.48-2,711.34-1,688.08

Finding the Fourth Proportional to 1,816.48, 2,711.34 and 1,688.08

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Solution

The fourth proportional to 1,816.48, 2,711.34 and 1,688.08 is: 2,519.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.48 : 2,711.34 = 1,688.08 : x
  2. Step 2: Convert to fraction form
    1,816.48/2,711.34 = 1,688.08/x
  3. Step 3: Cross multiply
    1,816.48x = 2,711.34 × 1,688.08
  4. Step 4: Simplify right side
    1,816.48x = 4,576,958.83
  5. Step 5: Solve for x
    x = 4,576,958.83/1,816.48
  6. Step 6: Final answer
    x = 2,519.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.