Home / 3,812.18-5,707.02-2,818.40

Finding the Fourth Proportional to 3,812.18, 5,707.02 and 2,818.40

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Solution

The fourth proportional to 3,812.18, 5,707.02 and 2,818.40 is: 4,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.18 : 5,707.02 = 2,818.40 : x
  2. Step 2: Convert to fraction form
    3,812.18/5,707.02 = 2,818.40/x
  3. Step 3: Cross multiply
    3,812.18x = 5,707.02 × 2,818.40
  4. Step 4: Simplify right side
    3,812.18x = 16,084,665.17
  5. Step 5: Solve for x
    x = 16,084,665.17/3,812.18
  6. Step 6: Final answer
    x = 4,219.28

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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.