Home / 3,077.12-4,246.80-2,485.76

Finding the Fourth Proportional to 3,077.12, 4,246.80 and 2,485.76

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Solution

The fourth proportional to 3,077.12, 4,246.80 and 2,485.76 is: 3,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,077.12 : 4,246.80 = 2,485.76 : x
  2. Step 2: Convert to fraction form
    3,077.12/4,246.80 = 2,485.76/x
  3. Step 3: Cross multiply
    3,077.12x = 4,246.80 × 2,485.76
  4. Step 4: Simplify right side
    3,077.12x = 10,556,525.57
  5. Step 5: Solve for x
    x = 10,556,525.57/3,077.12
  6. Step 6: Final answer
    x = 3,430.65

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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.