Home / 2,971.16-4,457.18-2,788.92

Finding the Fourth Proportional to 2,971.16, 4,457.18 and 2,788.92

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Solution

The fourth proportional to 2,971.16, 4,457.18 and 2,788.92 is: 4,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.16 : 4,457.18 = 2,788.92 : x
  2. Step 2: Convert to fraction form
    2,971.16/4,457.18 = 2,788.92/x
  3. Step 3: Cross multiply
    2,971.16x = 4,457.18 × 2,788.92
  4. Step 4: Simplify right side
    2,971.16x = 12,430,718.45
  5. Step 5: Solve for x
    x = 12,430,718.45/2,971.16
  6. Step 6: Final answer
    x = 4,183.79

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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.