Home / 2,420.12-3,341.64-1,859.70

Finding the Fourth Proportional to 2,420.12, 3,341.64 and 1,859.70

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Solution

The fourth proportional to 2,420.12, 3,341.64 and 1,859.70 is: 2,567.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.12 : 3,341.64 = 1,859.70 : x
  2. Step 2: Convert to fraction form
    2,420.12/3,341.64 = 1,859.70/x
  3. Step 3: Cross multiply
    2,420.12x = 3,341.64 × 1,859.70
  4. Step 4: Simplify right side
    2,420.12x = 6,214,447.91
  5. Step 5: Solve for x
    x = 6,214,447.91/2,420.12
  6. Step 6: Final answer
    x = 2,567.83

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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.