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Finding the Fourth Proportional to 5,662.93, 7,814.58 and 3,145.20

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Solution

The fourth proportional to 5,662.93, 7,814.58 and 3,145.20 is: 4,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,662.93 : 7,814.58 = 3,145.20 : x
  2. Step 2: Convert to fraction form
    5,662.93/7,814.58 = 3,145.20/x
  3. Step 3: Cross multiply
    5,662.93x = 7,814.58 × 3,145.20
  4. Step 4: Simplify right side
    5,662.93x = 24,578,417.02
  5. Step 5: Solve for x
    x = 24,578,417.02/5,662.93
  6. Step 6: Final answer
    x = 4,340.23

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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.