Home / 2,508.66-3,461.95-1,389.67

Finding the Fourth Proportional to 2,508.66, 3,461.95 and 1,389.67

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Solution

The fourth proportional to 2,508.66, 3,461.95 and 1,389.67 is: 1,917.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,508.66 : 3,461.95 = 1,389.67 : x
  2. Step 2: Convert to fraction form
    2,508.66/3,461.95 = 1,389.67/x
  3. Step 3: Cross multiply
    2,508.66x = 3,461.95 × 1,389.67
  4. Step 4: Simplify right side
    2,508.66x = 4,810,958.69
  5. Step 5: Solve for x
    x = 4,810,958.69/2,508.66
  6. Step 6: Final answer
    x = 1,917.74

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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.