Home / 7,340.72-10,128.56-4,355.04

Finding the Fourth Proportional to 7,340.72, 10,128.56 and 4,355.04

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Solution

The fourth proportional to 7,340.72, 10,128.56 and 4,355.04 is: 6,008.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.72 : 10,128.56 = 4,355.04 : x
  2. Step 2: Convert to fraction form
    7,340.72/10,128.56 = 4,355.04/x
  3. Step 3: Cross multiply
    7,340.72x = 10,128.56 × 4,355.04
  4. Step 4: Simplify right side
    7,340.72x = 44,110,283.94
  5. Step 5: Solve for x
    x = 44,110,283.94/7,340.72
  6. Step 6: Final answer
    x = 6,008.99

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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.