Home / 3,719.79-5,124.15-3,186.93

Finding the Fourth Proportional to 3,719.79, 5,124.15 and 3,186.93

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Solution

The fourth proportional to 3,719.79, 5,124.15 and 3,186.93 is: 4,390.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719.79 : 5,124.15 = 3,186.93 : x
  2. Step 2: Convert to fraction form
    3,719.79/5,124.15 = 3,186.93/x
  3. Step 3: Cross multiply
    3,719.79x = 5,124.15 × 3,186.93
  4. Step 4: Simplify right side
    3,719.79x = 16,330,307.36
  5. Step 5: Solve for x
    x = 16,330,307.36/3,719.79
  6. Step 6: Final answer
    x = 4,390.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.