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Finding the Fourth Proportional to 5,574.78, 7,692.90 and 3,056.46

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Solution

The fourth proportional to 5,574.78, 7,692.90 and 3,056.46 is: 4,217.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,574.78 : 7,692.90 = 3,056.46 : x
  2. Step 2: Convert to fraction form
    5,574.78/7,692.90 = 3,056.46/x
  3. Step 3: Cross multiply
    5,574.78x = 7,692.90 × 3,056.46
  4. Step 4: Simplify right side
    5,574.78x = 23,513,041.13
  5. Step 5: Solve for x
    x = 23,513,041.13/5,574.78
  6. Step 6: Final answer
    x = 4,217.75

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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.