Home / 2,423.12-3,341.86-1,980.25

Finding the Fourth Proportional to 2,423.12, 3,341.86 and 1,980.25

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Solution

The fourth proportional to 2,423.12, 3,341.86 and 1,980.25 is: 2,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,423.12 : 3,341.86 = 1,980.25 : x
  2. Step 2: Convert to fraction form
    2,423.12/3,341.86 = 1,980.25/x
  3. Step 3: Cross multiply
    2,423.12x = 3,341.86 × 1,980.25
  4. Step 4: Simplify right side
    2,423.12x = 6,617,704.96
  5. Step 5: Solve for x
    x = 6,617,704.96/2,423.12
  6. Step 6: Final answer
    x = 2,731.07

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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.