Home / 4,687.81-7,031.54-1,177.84

Finding the Fourth Proportional to 4,687.81, 7,031.54 and 1,177.84

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Solution

The fourth proportional to 4,687.81, 7,031.54 and 1,177.84 is: 1,766.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,687.81 : 7,031.54 = 1,177.84 : x
  2. Step 2: Convert to fraction form
    4,687.81/7,031.54 = 1,177.84/x
  3. Step 3: Cross multiply
    4,687.81x = 7,031.54 × 1,177.84
  4. Step 4: Simplify right side
    4,687.81x = 8,282,029.07
  5. Step 5: Solve for x
    x = 8,282,029.07/4,687.81
  6. Step 6: Final answer
    x = 1,766.72

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1.5x scale

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.