Home / 3,130.48-4,319.49-1,804.27

Finding the Fourth Proportional to 3,130.48, 4,319.49 and 1,804.27

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Solution

The fourth proportional to 3,130.48, 4,319.49 and 1,804.27 is: 2,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.48 : 4,319.49 = 1,804.27 : x
  2. Step 2: Convert to fraction form
    3,130.48/4,319.49 = 1,804.27/x
  3. Step 3: Cross multiply
    3,130.48x = 4,319.49 × 1,804.27
  4. Step 4: Simplify right side
    3,130.48x = 7,793,526.22
  5. Step 5: Solve for x
    x = 7,793,526.22/3,130.48
  6. Step 6: Final answer
    x = 2,489.56

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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.