Home / 2,127.71-2,929.90-2,079.19

Finding the Fourth Proportional to 2,127.71, 2,929.90 and 2,079.19

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Solution

The fourth proportional to 2,127.71, 2,929.90 and 2,079.19 is: 2,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.71 : 2,929.90 = 2,079.19 : x
  2. Step 2: Convert to fraction form
    2,127.71/2,929.90 = 2,079.19/x
  3. Step 3: Cross multiply
    2,127.71x = 2,929.90 × 2,079.19
  4. Step 4: Simplify right side
    2,127.71x = 6,091,805.00
  5. Step 5: Solve for x
    x = 6,091,805.00/2,127.71
  6. Step 6: Final answer
    x = 2,863.08

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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.