Home / 7,816.08-10,785.90-4,279.32

Finding the Fourth Proportional to 7,816.08, 10,785.90 and 4,279.32

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Solution

The fourth proportional to 7,816.08, 10,785.90 and 4,279.32 is: 5,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.08 : 10,785.90 = 4,279.32 : x
  2. Step 2: Convert to fraction form
    7,816.08/10,785.90 = 4,279.32/x
  3. Step 3: Cross multiply
    7,816.08x = 10,785.90 × 4,279.32
  4. Step 4: Simplify right side
    7,816.08x = 46,156,317.59
  5. Step 5: Solve for x
    x = 46,156,317.59/7,816.08
  6. Step 6: Final answer
    x = 5,905.30

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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.