Home / 5,115.51-7,673.70-1,417.74

Finding the Fourth Proportional to 5,115.51, 7,673.70 and 1,417.74

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Solution

The fourth proportional to 5,115.51, 7,673.70 and 1,417.74 is: 2,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.51 : 7,673.70 = 1,417.74 : x
  2. Step 2: Convert to fraction form
    5,115.51/7,673.70 = 1,417.74/x
  3. Step 3: Cross multiply
    5,115.51x = 7,673.70 × 1,417.74
  4. Step 4: Simplify right side
    5,115.51x = 10,879,311.44
  5. Step 5: Solve for x
    x = 10,879,311.44/5,115.51
  6. Step 6: Final answer
    x = 2,126.73

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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.