Home / 5,143.68-7,716.48-1,683.36

Finding the Fourth Proportional to 5,143.68, 7,716.48 and 1,683.36

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Solution

The fourth proportional to 5,143.68, 7,716.48 and 1,683.36 is: 2,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.68 : 7,716.48 = 1,683.36 : x
  2. Step 2: Convert to fraction form
    5,143.68/7,716.48 = 1,683.36/x
  3. Step 3: Cross multiply
    5,143.68x = 7,716.48 × 1,683.36
  4. Step 4: Simplify right side
    5,143.68x = 12,989,613.77
  5. Step 5: Solve for x
    x = 12,989,613.77/5,143.68
  6. Step 6: Final answer
    x = 2,525.35

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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.