Home / 2,021.40-3,031.56-1,246.23

Finding the Fourth Proportional to 2,021.40, 3,031.56 and 1,246.23

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Solution

The fourth proportional to 2,021.40, 3,031.56 and 1,246.23 is: 1,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.40 : 3,031.56 = 1,246.23 : x
  2. Step 2: Convert to fraction form
    2,021.40/3,031.56 = 1,246.23/x
  3. Step 3: Cross multiply
    2,021.40x = 3,031.56 × 1,246.23
  4. Step 4: Simplify right side
    2,021.40x = 3,778,021.02
  5. Step 5: Solve for x
    x = 3,778,021.02/2,021.40
  6. Step 6: Final answer
    x = 1,869.01

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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.