Home / 7,816.02-10,785.85-4,279.02

Finding the Fourth Proportional to 7,816.02, 10,785.85 and 4,279.02

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Solution

The fourth proportional to 7,816.02, 10,785.85 and 4,279.02 is: 5,904.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.02 : 10,785.85 = 4,279.02 : x
  2. Step 2: Convert to fraction form
    7,816.02/10,785.85 = 4,279.02/x
  3. Step 3: Cross multiply
    7,816.02x = 10,785.85 × 4,279.02
  4. Step 4: Simplify right side
    7,816.02x = 46,152,867.87
  5. Step 5: Solve for x
    x = 46,152,867.87/7,816.02
  6. Step 6: Final answer
    x = 5,904.91

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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.