Home / 6,420.05-9,612.69-3,335.57

Finding the Fourth Proportional to 6,420.05, 9,612.69 and 3,335.57

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Solution

The fourth proportional to 6,420.05, 9,612.69 and 3,335.57 is: 4,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420.05 : 9,612.69 = 3,335.57 : x
  2. Step 2: Convert to fraction form
    6,420.05/9,612.69 = 3,335.57/x
  3. Step 3: Cross multiply
    6,420.05x = 9,612.69 × 3,335.57
  4. Step 4: Simplify right side
    6,420.05x = 32,063,800.38
  5. Step 5: Solve for x
    x = 32,063,800.38/6,420.05
  6. Step 6: Final answer
    x = 4,994.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.