Home / 3,089.04-4,262.87-1,672.72

Finding the Fourth Proportional to 3,089.04, 4,262.87 and 1,672.72

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Solution

The fourth proportional to 3,089.04, 4,262.87 and 1,672.72 is: 2,308.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.04 : 4,262.87 = 1,672.72 : x
  2. Step 2: Convert to fraction form
    3,089.04/4,262.87 = 1,672.72/x
  3. Step 3: Cross multiply
    3,089.04x = 4,262.87 × 1,672.72
  4. Step 4: Simplify right side
    3,089.04x = 7,130,597.42
  5. Step 5: Solve for x
    x = 7,130,597.42/3,089.04
  6. Step 6: Final answer
    x = 2,308.36

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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.