Home / 2,142.64-2,955.45-1,810.54

Finding the Fourth Proportional to 2,142.64, 2,955.45 and 1,810.54

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Solution

The fourth proportional to 2,142.64, 2,955.45 and 1,810.54 is: 2,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.64 : 2,955.45 = 1,810.54 : x
  2. Step 2: Convert to fraction form
    2,142.64/2,955.45 = 1,810.54/x
  3. Step 3: Cross multiply
    2,142.64x = 2,955.45 × 1,810.54
  4. Step 4: Simplify right side
    2,142.64x = 5,350,960.44
  5. Step 5: Solve for x
    x = 5,350,960.44/2,142.64
  6. Step 6: Final answer
    x = 2,497.37

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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.