Home / 1,457.90-2,170.37-1,449.26

Finding the Fourth Proportional to 1,457.90, 2,170.37 and 1,449.26

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Solution

The fourth proportional to 1,457.90, 2,170.37 and 1,449.26 is: 2,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457.90 : 2,170.37 = 1,449.26 : x
  2. Step 2: Convert to fraction form
    1,457.90/2,170.37 = 1,449.26/x
  3. Step 3: Cross multiply
    1,457.90x = 2,170.37 × 1,449.26
  4. Step 4: Simplify right side
    1,457.90x = 3,145,430.43
  5. Step 5: Solve for x
    x = 3,145,430.43/1,457.90
  6. Step 6: Final answer
    x = 2,157.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.