Home / 3,115.64-4,299.50-1,699.36

Finding the Fourth Proportional to 3,115.64, 4,299.50 and 1,699.36

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Solution

The fourth proportional to 3,115.64, 4,299.50 and 1,699.36 is: 2,345.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.64 : 4,299.50 = 1,699.36 : x
  2. Step 2: Convert to fraction form
    3,115.64/4,299.50 = 1,699.36/x
  3. Step 3: Cross multiply
    3,115.64x = 4,299.50 × 1,699.36
  4. Step 4: Simplify right side
    3,115.64x = 7,306,398.32
  5. Step 5: Solve for x
    x = 7,306,398.32/3,115.64
  6. Step 6: Final answer
    x = 2,345.07

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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.