Home / 1,385.06-2,077.85-460.67

Finding the Fourth Proportional to 1,385.06, 2,077.85 and 460.67

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Solution

The fourth proportional to 1,385.06, 2,077.85 and 460.67 is: 691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385.06 : 2,077.85 = 460.67 : x
  2. Step 2: Convert to fraction form
    1,385.06/2,077.85 = 460.67/x
  3. Step 3: Cross multiply
    1,385.06x = 2,077.85 × 460.67
  4. Step 4: Simplify right side
    1,385.06x = 957,203.16
  5. Step 5: Solve for x
    x = 957,203.16/1,385.06
  6. Step 6: Final answer
    x = 691.09

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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.