Home / 3,765.65-5,199.02-2,421.84

Finding the Fourth Proportional to 3,765.65, 5,199.02 and 2,421.84

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Solution

The fourth proportional to 3,765.65, 5,199.02 and 2,421.84 is: 3,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.65 : 5,199.02 = 2,421.84 : x
  2. Step 2: Convert to fraction form
    3,765.65/5,199.02 = 2,421.84/x
  3. Step 3: Cross multiply
    3,765.65x = 5,199.02 × 2,421.84
  4. Step 4: Simplify right side
    3,765.65x = 12,591,200.65
  5. Step 5: Solve for x
    x = 12,591,200.65/3,765.65
  6. Step 6: Final answer
    x = 3,343.70

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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.