Home / 2,508.29-3,461.41-1,389.23

Finding the Fourth Proportional to 2,508.29, 3,461.41 and 1,389.23

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Solution

The fourth proportional to 2,508.29, 3,461.41 and 1,389.23 is: 1,917.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.29 : 3,461.41 = 1,389.23 : x
  2. Step 2: Convert to fraction form
    2,508.29/3,461.41 = 1,389.23/x
  3. Step 3: Cross multiply
    2,508.29x = 3,461.41 × 1,389.23
  4. Step 4: Simplify right side
    2,508.29x = 4,808,678.38
  5. Step 5: Solve for x
    x = 4,808,678.38/2,508.29
  6. Step 6: Final answer
    x = 1,917.11

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Half scale
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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.