Home / 3,688.88-5,087.04-2,430.68

Finding the Fourth Proportional to 3,688.88, 5,087.04 and 2,430.68

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Solution

The fourth proportional to 3,688.88, 5,087.04 and 2,430.68 is: 3,351.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.88 : 5,087.04 = 2,430.68 : x
  2. Step 2: Convert to fraction form
    3,688.88/5,087.04 = 2,430.68/x
  3. Step 3: Cross multiply
    3,688.88x = 5,087.04 × 2,430.68
  4. Step 4: Simplify right side
    3,688.88x = 12,364,966.39
  5. Step 5: Solve for x
    x = 12,364,966.39/3,688.88
  6. Step 6: Final answer
    x = 3,351.96

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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.