Home / 5,870.85-8,101.80-3,218.25

Finding the Fourth Proportional to 5,870.85, 8,101.80 and 3,218.25

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Solution

The fourth proportional to 5,870.85, 8,101.80 and 3,218.25 is: 4,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.85 : 8,101.80 = 3,218.25 : x
  2. Step 2: Convert to fraction form
    5,870.85/8,101.80 = 3,218.25/x
  3. Step 3: Cross multiply
    5,870.85x = 8,101.80 × 3,218.25
  4. Step 4: Simplify right side
    5,870.85x = 26,073,617.85
  5. Step 5: Solve for x
    x = 26,073,617.85/5,870.85
  6. Step 6: Final answer
    x = 4,441.20

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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.