Home / 4,971.80-7,457.98-1,508.78

Finding the Fourth Proportional to 4,971.80, 7,457.98 and 1,508.78

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Solution

The fourth proportional to 4,971.80, 7,457.98 and 1,508.78 is: 2,263.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.80 : 7,457.98 = 1,508.78 : x
  2. Step 2: Convert to fraction form
    4,971.80/7,457.98 = 1,508.78/x
  3. Step 3: Cross multiply
    4,971.80x = 7,457.98 × 1,508.78
  4. Step 4: Simplify right side
    4,971.80x = 11,252,451.06
  5. Step 5: Solve for x
    x = 11,252,451.06/4,971.80
  6. Step 6: Final answer
    x = 2,263.25

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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.