Home / 4,258.81-5,876.75-3,140.35

Finding the Fourth Proportional to 4,258.81, 5,876.75 and 3,140.35

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Solution

The fourth proportional to 4,258.81, 5,876.75 and 3,140.35 is: 4,333.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.81 : 5,876.75 = 3,140.35 : x
  2. Step 2: Convert to fraction form
    4,258.81/5,876.75 = 3,140.35/x
  3. Step 3: Cross multiply
    4,258.81x = 5,876.75 × 3,140.35
  4. Step 4: Simplify right side
    4,258.81x = 18,455,078.08
  5. Step 5: Solve for x
    x = 18,455,078.08/4,258.81
  6. Step 6: Final answer
    x = 4,333.39

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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.