Home / 5,555.20-8,332.04-1,857.36

Finding the Fourth Proportional to 5,555.20, 8,332.04 and 1,857.36

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Solution

The fourth proportional to 5,555.20, 8,332.04 and 1,857.36 is: 2,785.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,555.20 : 8,332.04 = 1,857.36 : x
  2. Step 2: Convert to fraction form
    5,555.20/8,332.04 = 1,857.36/x
  3. Step 3: Cross multiply
    5,555.20x = 8,332.04 × 1,857.36
  4. Step 4: Simplify right side
    5,555.20x = 15,475,597.81
  5. Step 5: Solve for x
    x = 15,475,597.81/5,555.20
  6. Step 6: Final answer
    x = 2,785.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.