Home / 2,457.62-3,390.92-1,395.15

Finding the Fourth Proportional to 2,457.62, 3,390.92 and 1,395.15

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Solution

The fourth proportional to 2,457.62, 3,390.92 and 1,395.15 is: 1,924.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.62 : 3,390.92 = 1,395.15 : x
  2. Step 2: Convert to fraction form
    2,457.62/3,390.92 = 1,395.15/x
  3. Step 3: Cross multiply
    2,457.62x = 3,390.92 × 1,395.15
  4. Step 4: Simplify right side
    2,457.62x = 4,730,842.04
  5. Step 5: Solve for x
    x = 4,730,842.04/2,457.62
  6. Step 6: Final answer
    x = 1,924.97

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1.5x scale

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.