Home / 2,885.23-4,305.40-2,557.18

Finding the Fourth Proportional to 2,885.23, 4,305.40 and 2,557.18

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Solution

The fourth proportional to 2,885.23, 4,305.40 and 2,557.18 is: 3,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,885.23 : 4,305.40 = 2,557.18 : x
  2. Step 2: Convert to fraction form
    2,885.23/4,305.40 = 2,557.18/x
  3. Step 3: Cross multiply
    2,885.23x = 4,305.40 × 2,557.18
  4. Step 4: Simplify right side
    2,885.23x = 11,009,682.77
  5. Step 5: Solve for x
    x = 11,009,682.77/2,885.23
  6. Step 6: Final answer
    x = 3,815.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.