Home / 4,751.34-7,126.65-1,288.50

Finding the Fourth Proportional to 4,751.34, 7,126.65 and 1,288.50

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Solution

The fourth proportional to 4,751.34, 7,126.65 and 1,288.50 is: 1,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.34 : 7,126.65 = 1,288.50 : x
  2. Step 2: Convert to fraction form
    4,751.34/7,126.65 = 1,288.50/x
  3. Step 3: Cross multiply
    4,751.34x = 7,126.65 × 1,288.50
  4. Step 4: Simplify right side
    4,751.34x = 9,182,688.53
  5. Step 5: Solve for x
    x = 9,182,688.53/4,751.34
  6. Step 6: Final answer
    x = 1,932.65

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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.