Home / 2,459.10-3,390.96-1,899.66

Finding the Fourth Proportional to 2,459.10, 3,390.96 and 1,899.66

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Solution

The fourth proportional to 2,459.10, 3,390.96 and 1,899.66 is: 2,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.10 : 3,390.96 = 1,899.66 : x
  2. Step 2: Convert to fraction form
    2,459.10/3,390.96 = 1,899.66/x
  3. Step 3: Cross multiply
    2,459.10x = 3,390.96 × 1,899.66
  4. Step 4: Simplify right side
    2,459.10x = 6,441,671.07
  5. Step 5: Solve for x
    x = 6,441,671.07/2,459.10
  6. Step 6: Final answer
    x = 2,619.52

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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.