Home / 2,943.55-4,062.08-1,685.12

Finding the Fourth Proportional to 2,943.55, 4,062.08 and 1,685.12

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Solution

The fourth proportional to 2,943.55, 4,062.08 and 1,685.12 is: 2,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.55 : 4,062.08 = 1,685.12 : x
  2. Step 2: Convert to fraction form
    2,943.55/4,062.08 = 1,685.12/x
  3. Step 3: Cross multiply
    2,943.55x = 4,062.08 × 1,685.12
  4. Step 4: Simplify right side
    2,943.55x = 6,845,076.15
  5. Step 5: Solve for x
    x = 6,845,076.15/2,943.55
  6. Step 6: Final answer
    x = 2,325.45

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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.