Home / 5,390.84-8,066.78-4,457.72

Finding the Fourth Proportional to 5,390.84, 8,066.78 and 4,457.72

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Solution

The fourth proportional to 5,390.84, 8,066.78 and 4,457.72 is: 6,670.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.84 : 8,066.78 = 4,457.72 : x
  2. Step 2: Convert to fraction form
    5,390.84/8,066.78 = 4,457.72/x
  3. Step 3: Cross multiply
    5,390.84x = 8,066.78 × 4,457.72
  4. Step 4: Simplify right side
    5,390.84x = 35,959,446.54
  5. Step 5: Solve for x
    x = 35,959,446.54/5,390.84
  6. Step 6: Final answer
    x = 6,670.47

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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.