Home / 3,167.12-4,751.32-975.76

Finding the Fourth Proportional to 3,167.12, 4,751.32 and 975.76

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Solution

The fourth proportional to 3,167.12, 4,751.32 and 975.76 is: 1,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.12 : 4,751.32 = 975.76 : x
  2. Step 2: Convert to fraction form
    3,167.12/4,751.32 = 975.76/x
  3. Step 3: Cross multiply
    3,167.12x = 4,751.32 × 975.76
  4. Step 4: Simplify right side
    3,167.12x = 4,636,148.00
  5. Step 5: Solve for x
    x = 4,636,148.00/3,167.12
  6. Step 6: Final answer
    x = 1,463.84

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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.