Home / 2,913.42-4,019.44-1,866.09

Finding the Fourth Proportional to 2,913.42, 4,019.44 and 1,866.09

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Solution

The fourth proportional to 2,913.42, 4,019.44 and 1,866.09 is: 2,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,913.42 : 4,019.44 = 1,866.09 : x
  2. Step 2: Convert to fraction form
    2,913.42/4,019.44 = 1,866.09/x
  3. Step 3: Cross multiply
    2,913.42x = 4,019.44 × 1,866.09
  4. Step 4: Simplify right side
    2,913.42x = 7,500,628.09
  5. Step 5: Solve for x
    x = 7,500,628.09/2,913.42
  6. Step 6: Final answer
    x = 2,574.51

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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.