Home / 7,389.48-11,080.08-2,457.78

Finding the Fourth Proportional to 7,389.48, 11,080.08 and 2,457.78

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Solution

The fourth proportional to 7,389.48, 11,080.08 and 2,457.78 is: 3,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.48 : 11,080.08 = 2,457.78 : x
  2. Step 2: Convert to fraction form
    7,389.48/11,080.08 = 2,457.78/x
  3. Step 3: Cross multiply
    7,389.48x = 11,080.08 × 2,457.78
  4. Step 4: Simplify right side
    7,389.48x = 27,232,399.02
  5. Step 5: Solve for x
    x = 27,232,399.02/7,389.48
  6. Step 6: Final answer
    x = 3,685.29

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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.