Home / 2,157.13-2,974.48-1,457.29

Finding the Fourth Proportional to 2,157.13, 2,974.48 and 1,457.29

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Solution

The fourth proportional to 2,157.13, 2,974.48 and 1,457.29 is: 2,009.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.13 : 2,974.48 = 1,457.29 : x
  2. Step 2: Convert to fraction form
    2,157.13/2,974.48 = 1,457.29/x
  3. Step 3: Cross multiply
    2,157.13x = 2,974.48 × 1,457.29
  4. Step 4: Simplify right side
    2,157.13x = 4,334,679.96
  5. Step 5: Solve for x
    x = 4,334,679.96/2,157.13
  6. Step 6: Final answer
    x = 2,009.47

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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.