Home / 6,461.90-8,917.48-3,775

Finding the Fourth Proportional to 6,461.90, 8,917.48 and 3,775

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Solution

The fourth proportional to 6,461.90, 8,917.48 and 3,775 is: 5,209.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.90 : 8,917.48 = 3,775 : x
  2. Step 2: Convert to fraction form
    6,461.90/8,917.48 = 3,775/x
  3. Step 3: Cross multiply
    6,461.90x = 8,917.48 × 3,775
  4. Step 4: Simplify right side
    6,461.90x = 33,663,487
  5. Step 5: Solve for x
    x = 33,663,487/6,461.90
  6. Step 6: Final answer
    x = 5,209.53

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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.