Home / 4,647.12-6,407.28-3,320.34

Finding the Fourth Proportional to 4,647.12, 6,407.28 and 3,320.34

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Solution

The fourth proportional to 4,647.12, 6,407.28 and 3,320.34 is: 4,577.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.12 : 6,407.28 = 3,320.34 : x
  2. Step 2: Convert to fraction form
    4,647.12/6,407.28 = 3,320.34/x
  3. Step 3: Cross multiply
    4,647.12x = 6,407.28 × 3,320.34
  4. Step 4: Simplify right side
    4,647.12x = 21,274,348.08
  5. Step 5: Solve for x
    x = 21,274,348.08/4,647.12
  6. Step 6: Final answer
    x = 4,577.96

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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.