Home / 2,158.21-2,960.05-2,132.65

Finding the Fourth Proportional to 2,158.21, 2,960.05 and 2,132.65

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Solution

The fourth proportional to 2,158.21, 2,960.05 and 2,132.65 is: 2,924.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158.21 : 2,960.05 = 2,132.65 : x
  2. Step 2: Convert to fraction form
    2,158.21/2,960.05 = 2,132.65/x
  3. Step 3: Cross multiply
    2,158.21x = 2,960.05 × 2,132.65
  4. Step 4: Simplify right side
    2,158.21x = 6,312,750.63
  5. Step 5: Solve for x
    x = 6,312,750.63/2,158.21
  6. Step 6: Final answer
    x = 2,924.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.