Home / 4,258.35-6,389.46-1,917.07

Finding the Fourth Proportional to 4,258.35, 6,389.46 and 1,917.07

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Solution

The fourth proportional to 4,258.35, 6,389.46 and 1,917.07 is: 2,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.35 : 6,389.46 = 1,917.07 : x
  2. Step 2: Convert to fraction form
    4,258.35/6,389.46 = 1,917.07/x
  3. Step 3: Cross multiply
    4,258.35x = 6,389.46 × 1,917.07
  4. Step 4: Simplify right side
    4,258.35x = 12,249,026.11
  5. Step 5: Solve for x
    x = 12,249,026.11/4,258.35
  6. Step 6: Final answer
    x = 2,876.47

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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.