Home / 3,680.04-5,079.06-2,688.60

Finding the Fourth Proportional to 3,680.04, 5,079.06 and 2,688.60

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Solution

The fourth proportional to 3,680.04, 5,079.06 and 2,688.60 is: 3,710.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.04 : 5,079.06 = 2,688.60 : x
  2. Step 2: Convert to fraction form
    3,680.04/5,079.06 = 2,688.60/x
  3. Step 3: Cross multiply
    3,680.04x = 5,079.06 × 2,688.60
  4. Step 4: Simplify right side
    3,680.04x = 13,655,560.72
  5. Step 5: Solve for x
    x = 13,655,560.72/3,680.04
  6. Step 6: Final answer
    x = 3,710.71

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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.