Home / 4,117.85-5,681.19-2,858.57

Finding the Fourth Proportional to 4,117.85, 5,681.19 and 2,858.57

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Solution

The fourth proportional to 4,117.85, 5,681.19 and 2,858.57 is: 3,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.85 : 5,681.19 = 2,858.57 : x
  2. Step 2: Convert to fraction form
    4,117.85/5,681.19 = 2,858.57/x
  3. Step 3: Cross multiply
    4,117.85x = 5,681.19 × 2,858.57
  4. Step 4: Simplify right side
    4,117.85x = 16,240,036.60
  5. Step 5: Solve for x
    x = 16,240,036.60/4,117.85
  6. Step 6: Final answer
    x = 3,943.82

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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.