Home / 2,124.96-3,165.90-2,020.40

Finding the Fourth Proportional to 2,124.96, 3,165.90 and 2,020.40

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Solution

The fourth proportional to 2,124.96, 3,165.90 and 2,020.40 is: 3,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.96 : 3,165.90 = 2,020.40 : x
  2. Step 2: Convert to fraction form
    2,124.96/3,165.90 = 2,020.40/x
  3. Step 3: Cross multiply
    2,124.96x = 3,165.90 × 2,020.40
  4. Step 4: Simplify right side
    2,124.96x = 6,396,384.36
  5. Step 5: Solve for x
    x = 6,396,384.36/2,124.96
  6. Step 6: Final answer
    x = 3,010.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.