Home / 5,113.10-7,656.69-2,801.90

Finding the Fourth Proportional to 5,113.10, 7,656.69 and 2,801.90

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Solution

The fourth proportional to 5,113.10, 7,656.69 and 2,801.90 is: 4,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.10 : 7,656.69 = 2,801.90 : x
  2. Step 2: Convert to fraction form
    5,113.10/7,656.69 = 2,801.90/x
  3. Step 3: Cross multiply
    5,113.10x = 7,656.69 × 2,801.90
  4. Step 4: Simplify right side
    5,113.10x = 21,453,279.71
  5. Step 5: Solve for x
    x = 21,453,279.71/5,113.10
  6. Step 6: Final answer
    x = 4,195.75

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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.