Home / 2,946.23-4,066.41-1,868.80

Finding the Fourth Proportional to 2,946.23, 4,066.41 and 1,868.80

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Solution

The fourth proportional to 2,946.23, 4,066.41 and 1,868.80 is: 2,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.23 : 4,066.41 = 1,868.80 : x
  2. Step 2: Convert to fraction form
    2,946.23/4,066.41 = 1,868.80/x
  3. Step 3: Cross multiply
    2,946.23x = 4,066.41 × 1,868.80
  4. Step 4: Simplify right side
    2,946.23x = 7,599,317.17
  5. Step 5: Solve for x
    x = 7,599,317.17/2,946.23
  6. Step 6: Final answer
    x = 2,579.34

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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.