Home / 4,810.20-6,638.41-2,686.15

Finding the Fourth Proportional to 4,810.20, 6,638.41 and 2,686.15

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Solution

The fourth proportional to 4,810.20, 6,638.41 and 2,686.15 is: 3,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,810.20 : 6,638.41 = 2,686.15 : x
  2. Step 2: Convert to fraction form
    4,810.20/6,638.41 = 2,686.15/x
  3. Step 3: Cross multiply
    4,810.20x = 6,638.41 × 2,686.15
  4. Step 4: Simplify right side
    4,810.20x = 17,831,741.71
  5. Step 5: Solve for x
    x = 17,831,741.71/4,810.20
  6. Step 6: Final answer
    x = 3,707.07

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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.