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Finding the Fourth Proportional to 5,643.04, 7,730.44 and 5,579.84

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Solution

The fourth proportional to 5,643.04, 7,730.44 and 5,579.84 is: 7,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.04 : 7,730.44 = 5,579.84 : x
  2. Step 2: Convert to fraction form
    5,643.04/7,730.44 = 5,579.84/x
  3. Step 3: Cross multiply
    5,643.04x = 7,730.44 × 5,579.84
  4. Step 4: Simplify right side
    5,643.04x = 43,134,618.33
  5. Step 5: Solve for x
    x = 43,134,618.33/5,643.04
  6. Step 6: Final answer
    x = 7,643.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.