Home / 3,486.47-4,813.17-2,688.03

Finding the Fourth Proportional to 3,486.47, 4,813.17 and 2,688.03

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Solution

The fourth proportional to 3,486.47, 4,813.17 and 2,688.03 is: 3,710.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.47 : 4,813.17 = 2,688.03 : x
  2. Step 2: Convert to fraction form
    3,486.47/4,813.17 = 2,688.03/x
  3. Step 3: Cross multiply
    3,486.47x = 4,813.17 × 2,688.03
  4. Step 4: Simplify right side
    3,486.47x = 12,937,945.36
  5. Step 5: Solve for x
    x = 12,937,945.36/3,486.47
  6. Step 6: Final answer
    x = 3,710.91

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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.