Home / 2,020.51-2,784.88-1,541.80

Finding the Fourth Proportional to 2,020.51, 2,784.88 and 1,541.80

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Solution

The fourth proportional to 2,020.51, 2,784.88 and 1,541.80 is: 2,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.51 : 2,784.88 = 1,541.80 : x
  2. Step 2: Convert to fraction form
    2,020.51/2,784.88 = 1,541.80/x
  3. Step 3: Cross multiply
    2,020.51x = 2,784.88 × 1,541.80
  4. Step 4: Simplify right side
    2,020.51x = 4,293,727.98
  5. Step 5: Solve for x
    x = 4,293,727.98/2,020.51
  6. Step 6: Final answer
    x = 2,125.07

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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.