Home / 2,970.28-4,099.44-1,851.40

Finding the Fourth Proportional to 2,970.28, 4,099.44 and 1,851.40

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Solution

The fourth proportional to 2,970.28, 4,099.44 and 1,851.40 is: 2,555.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,970.28 : 4,099.44 = 1,851.40 : x
  2. Step 2: Convert to fraction form
    2,970.28/4,099.44 = 1,851.40/x
  3. Step 3: Cross multiply
    2,970.28x = 4,099.44 × 1,851.40
  4. Step 4: Simplify right side
    2,970.28x = 7,589,703.22
  5. Step 5: Solve for x
    x = 7,589,703.22/2,970.28
  6. Step 6: Final answer
    x = 2,555.21

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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.