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Finding the Fourth Proportional to 2,971.60, 4,457.40 and 2,496.40

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Solution

The fourth proportional to 2,971.60, 4,457.40 and 2,496.40 is: 3,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.60 : 4,457.40 = 2,496.40 : x
  2. Step 2: Convert to fraction form
    2,971.60/4,457.40 = 2,496.40/x
  3. Step 3: Cross multiply
    2,971.60x = 4,457.40 × 2,496.40
  4. Step 4: Simplify right side
    2,971.60x = 11,127,453.36
  5. Step 5: Solve for x
    x = 11,127,453.36/2,971.60
  6. Step 6: Final answer
    x = 3,744.60

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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.