Home / 2,938.83-4,055.08-1,943.57

Finding the Fourth Proportional to 2,938.83, 4,055.08 and 1,943.57

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Solution

The fourth proportional to 2,938.83, 4,055.08 and 1,943.57 is: 2,681.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,938.83 : 4,055.08 = 1,943.57 : x
  2. Step 2: Convert to fraction form
    2,938.83/4,055.08 = 1,943.57/x
  3. Step 3: Cross multiply
    2,938.83x = 4,055.08 × 1,943.57
  4. Step 4: Simplify right side
    2,938.83x = 7,881,331.84
  5. Step 5: Solve for x
    x = 7,881,331.84/2,938.83
  6. Step 6: Final answer
    x = 2,681.79

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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.