Home / 3,285.66-4,542.96-2,870.66

Finding the Fourth Proportional to 3,285.66, 4,542.96 and 2,870.66

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Solution

The fourth proportional to 3,285.66, 4,542.96 and 2,870.66 is: 3,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,285.66 : 4,542.96 = 2,870.66 : x
  2. Step 2: Convert to fraction form
    3,285.66/4,542.96 = 2,870.66/x
  3. Step 3: Cross multiply
    3,285.66x = 4,542.96 × 2,870.66
  4. Step 4: Simplify right side
    3,285.66x = 13,041,293.55
  5. Step 5: Solve for x
    x = 13,041,293.55/3,285.66
  6. Step 6: Final answer
    x = 3,969.15

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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.