Home / 3,678.48-5,073.30-2,970.12

Finding the Fourth Proportional to 3,678.48, 5,073.30 and 2,970.12

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Solution

The fourth proportional to 3,678.48, 5,073.30 and 2,970.12 is: 4,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.48 : 5,073.30 = 2,970.12 : x
  2. Step 2: Convert to fraction form
    3,678.48/5,073.30 = 2,970.12/x
  3. Step 3: Cross multiply
    3,678.48x = 5,073.30 × 2,970.12
  4. Step 4: Simplify right side
    3,678.48x = 15,068,309.80
  5. Step 5: Solve for x
    x = 15,068,309.80/3,678.48
  6. Step 6: Final answer
    x = 4,096.34

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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.