Home / 3,916.90-5,875.26-1,143.46

Finding the Fourth Proportional to 3,916.90, 5,875.26 and 1,143.46

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Solution

The fourth proportional to 3,916.90, 5,875.26 and 1,143.46 is: 1,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,916.90 : 5,875.26 = 1,143.46 : x
  2. Step 2: Convert to fraction form
    3,916.90/5,875.26 = 1,143.46/x
  3. Step 3: Cross multiply
    3,916.90x = 5,875.26 × 1,143.46
  4. Step 4: Simplify right side
    3,916.90x = 6,718,124.80
  5. Step 5: Solve for x
    x = 6,718,124.80/3,916.90
  6. Step 6: Final answer
    x = 1,715.16

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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.