Home / 6,291.68-9,438.73-2,130.58

Finding the Fourth Proportional to 6,291.68, 9,438.73 and 2,130.58

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Solution

The fourth proportional to 6,291.68, 9,438.73 and 2,130.58 is: 3,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,291.68 : 9,438.73 = 2,130.58 : x
  2. Step 2: Convert to fraction form
    6,291.68/9,438.73 = 2,130.58/x
  3. Step 3: Cross multiply
    6,291.68x = 9,438.73 × 2,130.58
  4. Step 4: Simplify right side
    6,291.68x = 20,109,949.29
  5. Step 5: Solve for x
    x = 20,109,949.29/6,291.68
  6. Step 6: Final answer
    x = 3,196.27

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1.5x scale

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.