Home / 7,279.10-10,043.43-4,136.30

Finding the Fourth Proportional to 7,279.10, 10,043.43 and 4,136.30

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Solution

The fourth proportional to 7,279.10, 10,043.43 and 4,136.30 is: 5,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.10 : 10,043.43 = 4,136.30 : x
  2. Step 2: Convert to fraction form
    7,279.10/10,043.43 = 4,136.30/x
  3. Step 3: Cross multiply
    7,279.10x = 10,043.43 × 4,136.30
  4. Step 4: Simplify right side
    7,279.10x = 41,542,639.51
  5. Step 5: Solve for x
    x = 41,542,639.51/7,279.10
  6. Step 6: Final answer
    x = 5,707.11

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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.