Home / 2,973.40-4,092.60-2,803.30

Finding the Fourth Proportional to 2,973.40, 4,092.60 and 2,803.30

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Solution

The fourth proportional to 2,973.40, 4,092.60 and 2,803.30 is: 3,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,973.40 : 4,092.60 = 2,803.30 : x
  2. Step 2: Convert to fraction form
    2,973.40/4,092.60 = 2,803.30/x
  3. Step 3: Cross multiply
    2,973.40x = 4,092.60 × 2,803.30
  4. Step 4: Simplify right side
    2,973.40x = 11,472,785.58
  5. Step 5: Solve for x
    x = 11,472,785.58/2,973.40
  6. Step 6: Final answer
    x = 3,858.47

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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.