Home / 2,056.90-3,084.68-669.87

Finding the Fourth Proportional to 2,056.90, 3,084.68 and 669.87

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Solution

The fourth proportional to 2,056.90, 3,084.68 and 669.87 is: 1,004.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.90 : 3,084.68 = 669.87 : x
  2. Step 2: Convert to fraction form
    2,056.90/3,084.68 = 669.87/x
  3. Step 3: Cross multiply
    2,056.90x = 3,084.68 × 669.87
  4. Step 4: Simplify right side
    2,056.90x = 2,066,315.82
  5. Step 5: Solve for x
    x = 2,066,315.82/2,056.90
  6. Step 6: Final answer
    x = 1,004.58

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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.