Home / 5,457.47-7,530.95-3,218.84

Finding the Fourth Proportional to 5,457.47, 7,530.95 and 3,218.84

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Solution

The fourth proportional to 5,457.47, 7,530.95 and 3,218.84 is: 4,441.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,457.47 : 7,530.95 = 3,218.84 : x
  2. Step 2: Convert to fraction form
    5,457.47/7,530.95 = 3,218.84/x
  3. Step 3: Cross multiply
    5,457.47x = 7,530.95 × 3,218.84
  4. Step 4: Simplify right side
    5,457.47x = 24,240,885.44
  5. Step 5: Solve for x
    x = 24,240,885.44/5,457.47
  6. Step 6: Final answer
    x = 4,441.78

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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.