Home / 5,664.90-7,817.20-3,146.81

Finding the Fourth Proportional to 5,664.90, 7,817.20 and 3,146.81

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Solution

The fourth proportional to 5,664.90, 7,817.20 and 3,146.81 is: 4,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.90 : 7,817.20 = 3,146.81 : x
  2. Step 2: Convert to fraction form
    5,664.90/7,817.20 = 3,146.81/x
  3. Step 3: Cross multiply
    5,664.90x = 7,817.20 × 3,146.81
  4. Step 4: Simplify right side
    5,664.90x = 24,599,254.81
  5. Step 5: Solve for x
    x = 24,599,254.81/5,664.90
  6. Step 6: Final answer
    x = 4,342.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.