Home / 7,389.66-11,080.78-2,457.58

Finding the Fourth Proportional to 7,389.66, 11,080.78 and 2,457.58

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Solution

The fourth proportional to 7,389.66, 11,080.78 and 2,457.58 is: 3,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.66 : 11,080.78 = 2,457.58 : x
  2. Step 2: Convert to fraction form
    7,389.66/11,080.78 = 2,457.58/x
  3. Step 3: Cross multiply
    7,389.66x = 11,080.78 × 2,457.58
  4. Step 4: Simplify right side
    7,389.66x = 27,231,903.31
  5. Step 5: Solve for x
    x = 27,231,903.31/7,389.66
  6. Step 6: Final answer
    x = 3,685.14

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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.