Home / 3,415.32-5,123.08-1,335.24

Finding the Fourth Proportional to 3,415.32, 5,123.08 and 1,335.24

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Solution

The fourth proportional to 3,415.32, 5,123.08 and 1,335.24 is: 2,002.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.32 : 5,123.08 = 1,335.24 : x
  2. Step 2: Convert to fraction form
    3,415.32/5,123.08 = 1,335.24/x
  3. Step 3: Cross multiply
    3,415.32x = 5,123.08 × 1,335.24
  4. Step 4: Simplify right side
    3,415.32x = 6,840,541.34
  5. Step 5: Solve for x
    x = 6,840,541.34/3,415.32
  6. Step 6: Final answer
    x = 2,002.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.