Home / 5,237.48-7,857.50-1,774.76

Finding the Fourth Proportional to 5,237.48, 7,857.50 and 1,774.76

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Solution

The fourth proportional to 5,237.48, 7,857.50 and 1,774.76 is: 2,662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.48 : 7,857.50 = 1,774.76 : x
  2. Step 2: Convert to fraction form
    5,237.48/7,857.50 = 1,774.76/x
  3. Step 3: Cross multiply
    5,237.48x = 7,857.50 × 1,774.76
  4. Step 4: Simplify right side
    5,237.48x = 13,945,176.70
  5. Step 5: Solve for x
    x = 13,945,176.70/5,237.48
  6. Step 6: Final answer
    x = 2,662.57

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Double scale
Find fourth proportional to 5,238.48, 7,859 and 1,775.76
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1.5x scale

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.