Home / 4,258.12-6,386.10-1,916.80

Finding the Fourth Proportional to 4,258.12, 6,386.10 and 1,916.80

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Solution

The fourth proportional to 4,258.12, 6,386.10 and 1,916.80 is: 2,874.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.12 : 6,386.10 = 1,916.80 : x
  2. Step 2: Convert to fraction form
    4,258.12/6,386.10 = 1,916.80/x
  3. Step 3: Cross multiply
    4,258.12x = 6,386.10 × 1,916.80
  4. Step 4: Simplify right side
    4,258.12x = 12,240,876.48
  5. Step 5: Solve for x
    x = 12,240,876.48/4,258.12
  6. Step 6: Final answer
    x = 2,874.71

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1.5x scale

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.