Home / 1,684.10-2,528.37-1,438.87

Finding the Fourth Proportional to 1,684.10, 2,528.37 and 1,438.87

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Solution

The fourth proportional to 1,684.10, 2,528.37 and 1,438.87 is: 2,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.10 : 2,528.37 = 1,438.87 : x
  2. Step 2: Convert to fraction form
    1,684.10/2,528.37 = 1,438.87/x
  3. Step 3: Cross multiply
    1,684.10x = 2,528.37 × 1,438.87
  4. Step 4: Simplify right side
    1,684.10x = 3,637,997.81
  5. Step 5: Solve for x
    x = 3,637,997.81/1,684.10
  6. Step 6: Final answer
    x = 2,160.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.