Home / 5,661.04-7,812.26-3,143.20

Finding the Fourth Proportional to 5,661.04, 7,812.26 and 3,143.20

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Solution

The fourth proportional to 5,661.04, 7,812.26 and 3,143.20 is: 4,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.04 : 7,812.26 = 3,143.20 : x
  2. Step 2: Convert to fraction form
    5,661.04/7,812.26 = 3,143.20/x
  3. Step 3: Cross multiply
    5,661.04x = 7,812.26 × 3,143.20
  4. Step 4: Simplify right side
    5,661.04x = 24,555,495.63
  5. Step 5: Solve for x
    x = 24,555,495.63/5,661.04
  6. Step 6: Final answer
    x = 4,337.63

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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.