Home / 4,785.40-6,607.07-4,279.68

Finding the Fourth Proportional to 4,785.40, 6,607.07 and 4,279.68

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Solution

The fourth proportional to 4,785.40, 6,607.07 and 4,279.68 is: 5,908.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.40 : 6,607.07 = 4,279.68 : x
  2. Step 2: Convert to fraction form
    4,785.40/6,607.07 = 4,279.68/x
  3. Step 3: Cross multiply
    4,785.40x = 6,607.07 × 4,279.68
  4. Step 4: Simplify right side
    4,785.40x = 28,276,145.34
  5. Step 5: Solve for x
    x = 28,276,145.34/4,785.40
  6. Step 6: Final answer
    x = 5,908.84

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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.