Home / 3,126.50-4,314.84-1,729.52

Finding the Fourth Proportional to 3,126.50, 4,314.84 and 1,729.52

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Solution

The fourth proportional to 3,126.50, 4,314.84 and 1,729.52 is: 2,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.50 : 4,314.84 = 1,729.52 : x
  2. Step 2: Convert to fraction form
    3,126.50/4,314.84 = 1,729.52/x
  3. Step 3: Cross multiply
    3,126.50x = 4,314.84 × 1,729.52
  4. Step 4: Simplify right side
    3,126.50x = 7,462,602.08
  5. Step 5: Solve for x
    x = 7,462,602.08/3,126.50
  6. Step 6: Final answer
    x = 2,386.89

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1.5x scale

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.