Home / 2,122.14-2,927.85-1,283.10

Finding the Fourth Proportional to 2,122.14, 2,927.85 and 1,283.10

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Solution

The fourth proportional to 2,122.14, 2,927.85 and 1,283.10 is: 1,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,122.14 : 2,927.85 = 1,283.10 : x
  2. Step 2: Convert to fraction form
    2,122.14/2,927.85 = 1,283.10/x
  3. Step 3: Cross multiply
    2,122.14x = 2,927.85 × 1,283.10
  4. Step 4: Simplify right side
    2,122.14x = 3,756,724.34
  5. Step 5: Solve for x
    x = 3,756,724.34/2,122.14
  6. Step 6: Final answer
    x = 1,770.25

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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.