Home / 4,674.45-7,012.14-1,387.60

Finding the Fourth Proportional to 4,674.45, 7,012.14 and 1,387.60

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Solution

The fourth proportional to 4,674.45, 7,012.14 and 1,387.60 is: 2,081.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,674.45 : 7,012.14 = 1,387.60 : x
  2. Step 2: Convert to fraction form
    4,674.45/7,012.14 = 1,387.60/x
  3. Step 3: Cross multiply
    4,674.45x = 7,012.14 × 1,387.60
  4. Step 4: Simplify right side
    4,674.45x = 9,730,045.46
  5. Step 5: Solve for x
    x = 9,730,045.46/4,674.45
  6. Step 6: Final answer
    x = 2,081.54

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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.