Home / 2,069.90-3,108.45-1,457.90

Finding the Fourth Proportional to 2,069.90, 3,108.45 and 1,457.90

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Solution

The fourth proportional to 2,069.90, 3,108.45 and 1,457.90 is: 2,189.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069.90 : 3,108.45 = 1,457.90 : x
  2. Step 2: Convert to fraction form
    2,069.90/3,108.45 = 1,457.90/x
  3. Step 3: Cross multiply
    2,069.90x = 3,108.45 × 1,457.90
  4. Step 4: Simplify right side
    2,069.90x = 4,531,809.26
  5. Step 5: Solve for x
    x = 4,531,809.26/2,069.90
  6. Step 6: Final answer
    x = 2,189.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.