Home / 2,405.20-3,319.14-1,342.91

Finding the Fourth Proportional to 2,405.20, 3,319.14 and 1,342.91

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Solution

The fourth proportional to 2,405.20, 3,319.14 and 1,342.91 is: 1,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.20 : 3,319.14 = 1,342.91 : x
  2. Step 2: Convert to fraction form
    2,405.20/3,319.14 = 1,342.91/x
  3. Step 3: Cross multiply
    2,405.20x = 3,319.14 × 1,342.91
  4. Step 4: Simplify right side
    2,405.20x = 4,457,282.99
  5. Step 5: Solve for x
    x = 4,457,282.99/2,405.20
  6. Step 6: Final answer
    x = 1,853.19

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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.