Home / 6,461.19-8,916.20-3,947.51

Finding the Fourth Proportional to 6,461.19, 8,916.20 and 3,947.51

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Solution

The fourth proportional to 6,461.19, 8,916.20 and 3,947.51 is: 5,447.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.19 : 8,916.20 = 3,947.51 : x
  2. Step 2: Convert to fraction form
    6,461.19/8,916.20 = 3,947.51/x
  3. Step 3: Cross multiply
    6,461.19x = 8,916.20 × 3,947.51
  4. Step 4: Simplify right side
    6,461.19x = 35,196,792.04
  5. Step 5: Solve for x
    x = 35,196,792.04/6,461.19
  6. Step 6: Final answer
    x = 5,447.41

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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.