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Finding the Fourth Proportional to 2,957.44, 4,405.16 and 2,807.68

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Solution

The fourth proportional to 2,957.44, 4,405.16 and 2,807.68 is: 4,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.44 : 4,405.16 = 2,807.68 : x
  2. Step 2: Convert to fraction form
    2,957.44/4,405.16 = 2,807.68/x
  3. Step 3: Cross multiply
    2,957.44x = 4,405.16 × 2,807.68
  4. Step 4: Simplify right side
    2,957.44x = 12,368,279.63
  5. Step 5: Solve for x
    x = 12,368,279.63/2,957.44
  6. Step 6: Final answer
    x = 4,182.09

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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.