Home / 2,421.12-3,341.42-1,359.06

Finding the Fourth Proportional to 2,421.12, 3,341.42 and 1,359.06

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Solution

The fourth proportional to 2,421.12, 3,341.42 and 1,359.06 is: 1,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,421.12 : 3,341.42 = 1,359.06 : x
  2. Step 2: Convert to fraction form
    2,421.12/3,341.42 = 1,359.06/x
  3. Step 3: Cross multiply
    2,421.12x = 3,341.42 × 1,359.06
  4. Step 4: Simplify right side
    2,421.12x = 4,541,183.47
  5. Step 5: Solve for x
    x = 4,541,183.47/2,421.12
  6. Step 6: Final answer
    x = 1,875.65

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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.