Home / 2,117.46-2,918.37-1,786.74

Finding the Fourth Proportional to 2,117.46, 2,918.37 and 1,786.74

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Solution

The fourth proportional to 2,117.46, 2,918.37 and 1,786.74 is: 2,462.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117.46 : 2,918.37 = 1,786.74 : x
  2. Step 2: Convert to fraction form
    2,117.46/2,918.37 = 1,786.74/x
  3. Step 3: Cross multiply
    2,117.46x = 2,918.37 × 1,786.74
  4. Step 4: Simplify right side
    2,117.46x = 5,214,368.41
  5. Step 5: Solve for x
    x = 5,214,368.41/2,117.46
  6. Step 6: Final answer
    x = 2,462.56

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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.