Home / 4,971.90-7,457.85-2,779.44

Finding the Fourth Proportional to 4,971.90, 7,457.85 and 2,779.44

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Solution

The fourth proportional to 4,971.90, 7,457.85 and 2,779.44 is: 4,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.90 : 7,457.85 = 2,779.44 : x
  2. Step 2: Convert to fraction form
    4,971.90/7,457.85 = 2,779.44/x
  3. Step 3: Cross multiply
    4,971.90x = 7,457.85 × 2,779.44
  4. Step 4: Simplify right side
    4,971.90x = 20,728,646.60
  5. Step 5: Solve for x
    x = 20,728,646.60/4,971.90
  6. Step 6: Final answer
    x = 4,169.16

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Similar ratio
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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.