Home / 5,407.70-8,095.35-3,215.30

Finding the Fourth Proportional to 5,407.70, 8,095.35 and 3,215.30

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Solution

The fourth proportional to 5,407.70, 8,095.35 and 3,215.30 is: 4,813.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.70 : 8,095.35 = 3,215.30 : x
  2. Step 2: Convert to fraction form
    5,407.70/8,095.35 = 3,215.30/x
  3. Step 3: Cross multiply
    5,407.70x = 8,095.35 × 3,215.30
  4. Step 4: Simplify right side
    5,407.70x = 26,028,978.86
  5. Step 5: Solve for x
    x = 26,028,978.86/5,407.70
  6. Step 6: Final answer
    x = 4,813.32

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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.