Home / 2,903.28-4,006.56-1,661.28

Finding the Fourth Proportional to 2,903.28, 4,006.56 and 1,661.28

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Solution

The fourth proportional to 2,903.28, 4,006.56 and 1,661.28 is: 2,292.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.28 : 4,006.56 = 1,661.28 : x
  2. Step 2: Convert to fraction form
    2,903.28/4,006.56 = 1,661.28/x
  3. Step 3: Cross multiply
    2,903.28x = 4,006.56 × 1,661.28
  4. Step 4: Simplify right side
    2,903.28x = 6,656,018.00
  5. Step 5: Solve for x
    x = 6,656,018.00/2,903.28
  6. Step 6: Final answer
    x = 2,292.59

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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.