Home / 5,409.90-8,117.55-3,071.70

Finding the Fourth Proportional to 5,409.90, 8,117.55 and 3,071.70

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Solution

The fourth proportional to 5,409.90, 8,117.55 and 3,071.70 is: 4,609.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.90 : 8,117.55 = 3,071.70 : x
  2. Step 2: Convert to fraction form
    5,409.90/8,117.55 = 3,071.70/x
  3. Step 3: Cross multiply
    5,409.90x = 8,117.55 × 3,071.70
  4. Step 4: Simplify right side
    5,409.90x = 24,934,678.34
  5. Step 5: Solve for x
    x = 24,934,678.34/5,409.90
  6. Step 6: Final answer
    x = 4,609.08

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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.