Home / 3,122.40-4,308.80-1,795.16

Finding the Fourth Proportional to 3,122.40, 4,308.80 and 1,795.16

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Solution

The fourth proportional to 3,122.40, 4,308.80 and 1,795.16 is: 2,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.40 : 4,308.80 = 1,795.16 : x
  2. Step 2: Convert to fraction form
    3,122.40/4,308.80 = 1,795.16/x
  3. Step 3: Cross multiply
    3,122.40x = 4,308.80 × 1,795.16
  4. Step 4: Simplify right side
    3,122.40x = 7,734,985.41
  5. Step 5: Solve for x
    x = 7,734,985.41/3,122.40
  6. Step 6: Final answer
    x = 2,477.26

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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.