Home / 1,688.91-2,518.94-1,630.14

Finding the Fourth Proportional to 1,688.91, 2,518.94 and 1,630.14

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Solution

The fourth proportional to 1,688.91, 2,518.94 and 1,630.14 is: 2,431.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.91 : 2,518.94 = 1,630.14 : x
  2. Step 2: Convert to fraction form
    1,688.91/2,518.94 = 1,630.14/x
  3. Step 3: Cross multiply
    1,688.91x = 2,518.94 × 1,630.14
  4. Step 4: Simplify right side
    1,688.91x = 4,106,204.11
  5. Step 5: Solve for x
    x = 4,106,204.11/1,688.91
  6. Step 6: Final answer
    x = 2,431.27

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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.