Home / 4,485.31-6,188.13-2,808.81

Finding the Fourth Proportional to 4,485.31, 6,188.13 and 2,808.81

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Solution

The fourth proportional to 4,485.31, 6,188.13 and 2,808.81 is: 3,875.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485.31 : 6,188.13 = 2,808.81 : x
  2. Step 2: Convert to fraction form
    4,485.31/6,188.13 = 2,808.81/x
  3. Step 3: Cross multiply
    4,485.31x = 6,188.13 × 2,808.81
  4. Step 4: Simplify right side
    4,485.31x = 17,381,281.43
  5. Step 5: Solve for x
    x = 17,381,281.43/4,485.31
  6. Step 6: Final answer
    x = 3,875.16

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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.