Home / 2,457.57-3,390.61-1,395.19

Finding the Fourth Proportional to 2,457.57, 3,390.61 and 1,395.19

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Solution

The fourth proportional to 2,457.57, 3,390.61 and 1,395.19 is: 1,924.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.57 : 3,390.61 = 1,395.19 : x
  2. Step 2: Convert to fraction form
    2,457.57/3,390.61 = 1,395.19/x
  3. Step 3: Cross multiply
    2,457.57x = 3,390.61 × 1,395.19
  4. Step 4: Simplify right side
    2,457.57x = 4,730,521.24
  5. Step 5: Solve for x
    x = 4,730,521.24/2,457.57
  6. Step 6: Final answer
    x = 1,924.88

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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.