Home / 3,457.08-4,771.79-2,990.00

Finding the Fourth Proportional to 3,457.08, 4,771.79 and 2,990.00

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Solution

The fourth proportional to 3,457.08, 4,771.79 and 2,990.00 is: 4,127.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.08 : 4,771.79 = 2,990.00 : x
  2. Step 2: Convert to fraction form
    3,457.08/4,771.79 = 2,990.00/x
  3. Step 3: Cross multiply
    3,457.08x = 4,771.79 × 2,990.00
  4. Step 4: Simplify right side
    3,457.08x = 14,267,613.29
  5. Step 5: Solve for x
    x = 14,267,613.29/3,457.08
  6. Step 6: Final answer
    x = 4,127.07

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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.