Home / 4,457.12-6,148.78-2,885.72

Finding the Fourth Proportional to 4,457.12, 6,148.78 and 2,885.72

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Solution

The fourth proportional to 4,457.12, 6,148.78 and 2,885.72 is: 3,980.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,457.12 : 6,148.78 = 2,885.72 : x
  2. Step 2: Convert to fraction form
    4,457.12/6,148.78 = 2,885.72/x
  3. Step 3: Cross multiply
    4,457.12x = 6,148.78 × 2,885.72
  4. Step 4: Simplify right side
    4,457.12x = 17,743,619.46
  5. Step 5: Solve for x
    x = 17,743,619.46/4,457.12
  6. Step 6: Final answer
    x = 3,980.97

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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.