Home / 2,405.10-3,319.11-1,342.85

Finding the Fourth Proportional to 2,405.10, 3,319.11 and 1,342.85

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Solution

The fourth proportional to 2,405.10, 3,319.11 and 1,342.85 is: 1,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.10 : 3,319.11 = 1,342.85 : x
  2. Step 2: Convert to fraction form
    2,405.10/3,319.11 = 1,342.85/x
  3. Step 3: Cross multiply
    2,405.10x = 3,319.11 × 1,342.85
  4. Step 4: Simplify right side
    2,405.10x = 4,457,066.86
  5. Step 5: Solve for x
    x = 4,457,066.86/2,405.10
  6. Step 6: Final answer
    x = 1,853.17

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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.