Home / 4,993.56-6,890.40-3,130.56

Finding the Fourth Proportional to 4,993.56, 6,890.40 and 3,130.56

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Solution

The fourth proportional to 4,993.56, 6,890.40 and 3,130.56 is: 4,319.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,993.56 : 6,890.40 = 3,130.56 : x
  2. Step 2: Convert to fraction form
    4,993.56/6,890.40 = 3,130.56/x
  3. Step 3: Cross multiply
    4,993.56x = 6,890.40 × 3,130.56
  4. Step 4: Simplify right side
    4,993.56x = 21,570,810.62
  5. Step 5: Solve for x
    x = 21,570,810.62/4,993.56
  6. Step 6: Final answer
    x = 4,319.73

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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.