Home / 2,160.37-3,240.21-773.45

Finding the Fourth Proportional to 2,160.37, 3,240.21 and 773.45

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Solution

The fourth proportional to 2,160.37, 3,240.21 and 773.45 is: 1,160.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160.37 : 3,240.21 = 773.45 : x
  2. Step 2: Convert to fraction form
    2,160.37/3,240.21 = 773.45/x
  3. Step 3: Cross multiply
    2,160.37x = 3,240.21 × 773.45
  4. Step 4: Simplify right side
    2,160.37x = 2,506,140.42
  5. Step 5: Solve for x
    x = 2,506,140.42/2,160.37
  6. Step 6: Final answer
    x = 1,160.05

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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.