Home / 3,117.80-4,303.00-1,791.48

Finding the Fourth Proportional to 3,117.80, 4,303.00 and 1,791.48

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Solution

The fourth proportional to 3,117.80, 4,303.00 and 1,791.48 is: 2,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.80 : 4,303.00 = 1,791.48 : x
  2. Step 2: Convert to fraction form
    3,117.80/4,303.00 = 1,791.48/x
  3. Step 3: Cross multiply
    3,117.80x = 4,303.00 × 1,791.48
  4. Step 4: Simplify right side
    3,117.80x = 7,708,707.97
  5. Step 5: Solve for x
    x = 7,708,707.97/3,117.80
  6. Step 6: Final answer
    x = 2,472.48

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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.