Home / 7,340.79-10,130.20-3,983.58

Finding the Fourth Proportional to 7,340.79, 10,130.20 and 3,983.58

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Solution

The fourth proportional to 7,340.79, 10,130.20 and 3,983.58 is: 5,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.79 : 10,130.20 = 3,983.58 : x
  2. Step 2: Convert to fraction form
    7,340.79/10,130.20 = 3,983.58/x
  3. Step 3: Cross multiply
    7,340.79x = 10,130.20 × 3,983.58
  4. Step 4: Simplify right side
    7,340.79x = 40,354,462.12
  5. Step 5: Solve for x
    x = 40,354,462.12/7,340.79
  6. Step 6: Final answer
    x = 5,497.29

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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.