Home / 3,130.44-4,319.76-1,803.25

Finding the Fourth Proportional to 3,130.44, 4,319.76 and 1,803.25

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Solution

The fourth proportional to 3,130.44, 4,319.76 and 1,803.25 is: 2,488.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.44 : 4,319.76 = 1,803.25 : x
  2. Step 2: Convert to fraction form
    3,130.44/4,319.76 = 1,803.25/x
  3. Step 3: Cross multiply
    3,130.44x = 4,319.76 × 1,803.25
  4. Step 4: Simplify right side
    3,130.44x = 7,789,607.22
  5. Step 5: Solve for x
    x = 7,789,607.22/3,130.44
  6. Step 6: Final answer
    x = 2,488.34

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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.