Home / 4,385.79-6,574.87-1,918.73

Finding the Fourth Proportional to 4,385.79, 6,574.87 and 1,918.73

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Solution

The fourth proportional to 4,385.79, 6,574.87 and 1,918.73 is: 2,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,385.79 : 6,574.87 = 1,918.73 : x
  2. Step 2: Convert to fraction form
    4,385.79/6,574.87 = 1,918.73/x
  3. Step 3: Cross multiply
    4,385.79x = 6,574.87 × 1,918.73
  4. Step 4: Simplify right side
    4,385.79x = 12,615,400.32
  5. Step 5: Solve for x
    x = 12,615,400.32/4,385.79
  6. Step 6: Final answer
    x = 2,876.43

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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.