Home / 4,971.30-7,457.49-1,686.75

Finding the Fourth Proportional to 4,971.30, 7,457.49 and 1,686.75

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Solution

The fourth proportional to 4,971.30, 7,457.49 and 1,686.75 is: 2,530.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.30 : 7,457.49 = 1,686.75 : x
  2. Step 2: Convert to fraction form
    4,971.30/7,457.49 = 1,686.75/x
  3. Step 3: Cross multiply
    4,971.30x = 7,457.49 × 1,686.75
  4. Step 4: Simplify right side
    4,971.30x = 12,578,921.26
  5. Step 5: Solve for x
    x = 12,578,921.26/4,971.30
  6. Step 6: Final answer
    x = 2,530.31

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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.