Home / 1,688.48-2,519.83-1,503.96

Finding the Fourth Proportional to 1,688.48, 2,519.83 and 1,503.96

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Solution

The fourth proportional to 1,688.48, 2,519.83 and 1,503.96 is: 2,244.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.48 : 2,519.83 = 1,503.96 : x
  2. Step 2: Convert to fraction form
    1,688.48/2,519.83 = 1,503.96/x
  3. Step 3: Cross multiply
    1,688.48x = 2,519.83 × 1,503.96
  4. Step 4: Simplify right side
    1,688.48x = 3,789,723.53
  5. Step 5: Solve for x
    x = 3,789,723.53/1,688.48
  6. Step 6: Final answer
    x = 2,244.46

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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.