Home / 4,245.80-6,368.54-1,125.83

Finding the Fourth Proportional to 4,245.80, 6,368.54 and 1,125.83

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Solution

The fourth proportional to 4,245.80, 6,368.54 and 1,125.83 is: 1,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,245.80 : 6,368.54 = 1,125.83 : x
  2. Step 2: Convert to fraction form
    4,245.80/6,368.54 = 1,125.83/x
  3. Step 3: Cross multiply
    4,245.80x = 6,368.54 × 1,125.83
  4. Step 4: Simplify right side
    4,245.80x = 7,169,893.39
  5. Step 5: Solve for x
    x = 7,169,893.39/4,245.80
  6. Step 6: Final answer
    x = 1,688.70

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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.