Home / 2,029.81-2,801.08-1,145.70

Finding the Fourth Proportional to 2,029.81, 2,801.08 and 1,145.70

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Solution

The fourth proportional to 2,029.81, 2,801.08 and 1,145.70 is: 1,581.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,029.81 : 2,801.08 = 1,145.70 : x
  2. Step 2: Convert to fraction form
    2,029.81/2,801.08 = 1,145.70/x
  3. Step 3: Cross multiply
    2,029.81x = 2,801.08 × 1,145.70
  4. Step 4: Simplify right side
    2,029.81x = 3,209,183.35
  5. Step 5: Solve for x
    x = 3,209,183.35/2,029.81
  6. Step 6: Final answer
    x = 1,581.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.