Home / 5,104.65-7,656.84-1,406.87

Finding the Fourth Proportional to 5,104.65, 7,656.84 and 1,406.87

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Solution

The fourth proportional to 5,104.65, 7,656.84 and 1,406.87 is: 2,110.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.65 : 7,656.84 = 1,406.87 : x
  2. Step 2: Convert to fraction form
    5,104.65/7,656.84 = 1,406.87/x
  3. Step 3: Cross multiply
    5,104.65x = 7,656.84 × 1,406.87
  4. Step 4: Simplify right side
    5,104.65x = 10,772,178.49
  5. Step 5: Solve for x
    x = 10,772,178.49/5,104.65
  6. Step 6: Final answer
    x = 2,110.27

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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.