Home / 5,405.46-8,108.62-1,707.98

Finding the Fourth Proportional to 5,405.46, 8,108.62 and 1,707.98

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Solution

The fourth proportional to 5,405.46, 8,108.62 and 1,707.98 is: 2,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.46 : 8,108.62 = 1,707.98 : x
  2. Step 2: Convert to fraction form
    5,405.46/8,108.62 = 1,707.98/x
  3. Step 3: Cross multiply
    5,405.46x = 8,108.62 × 1,707.98
  4. Step 4: Simplify right side
    5,405.46x = 13,849,360.79
  5. Step 5: Solve for x
    x = 13,849,360.79/5,405.46
  6. Step 6: Final answer
    x = 2,562.11

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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.