Home / 5,237.20-7,856.76-2,315.60

Finding the Fourth Proportional to 5,237.20, 7,856.76 and 2,315.60

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Solution

The fourth proportional to 5,237.20, 7,856.76 and 2,315.60 is: 3,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.20 : 7,856.76 = 2,315.60 : x
  2. Step 2: Convert to fraction form
    5,237.20/7,856.76 = 2,315.60/x
  3. Step 3: Cross multiply
    5,237.20x = 7,856.76 × 2,315.60
  4. Step 4: Simplify right side
    5,237.20x = 18,193,113.46
  5. Step 5: Solve for x
    x = 18,193,113.46/5,237.20
  6. Step 6: Final answer
    x = 3,473.82

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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.