Home / 5,639.10-8,447.31-3,170.22

Finding the Fourth Proportional to 5,639.10, 8,447.31 and 3,170.22

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Solution

The fourth proportional to 5,639.10, 8,447.31 and 3,170.22 is: 4,748.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.10 : 8,447.31 = 3,170.22 : x
  2. Step 2: Convert to fraction form
    5,639.10/8,447.31 = 3,170.22/x
  3. Step 3: Cross multiply
    5,639.10x = 8,447.31 × 3,170.22
  4. Step 4: Simplify right side
    5,639.10x = 26,779,831.11
  5. Step 5: Solve for x
    x = 26,779,831.11/5,639.10
  6. Step 6: Final answer
    x = 4,748.95

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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.