Home / 8,190.31-12,281.86-2,345.59

Finding the Fourth Proportional to 8,190.31, 12,281.86 and 2,345.59

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Solution

The fourth proportional to 8,190.31, 12,281.86 and 2,345.59 is: 3,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190.31 : 12,281.86 = 2,345.59 : x
  2. Step 2: Convert to fraction form
    8,190.31/12,281.86 = 2,345.59/x
  3. Step 3: Cross multiply
    8,190.31x = 12,281.86 × 2,345.59
  4. Step 4: Simplify right side
    8,190.31x = 28,808,208.00
  5. Step 5: Solve for x
    x = 28,808,208.00/8,190.31
  6. Step 6: Final answer
    x = 3,517.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.