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Finding the Fourth Proportional to 3,412.68, 4,710.18 and 2,015.88

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Solution

The fourth proportional to 3,412.68, 4,710.18 and 2,015.88 is: 2,782.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.68 : 4,710.18 = 2,015.88 : x
  2. Step 2: Convert to fraction form
    3,412.68/4,710.18 = 2,015.88/x
  3. Step 3: Cross multiply
    3,412.68x = 4,710.18 × 2,015.88
  4. Step 4: Simplify right side
    3,412.68x = 9,495,157.66
  5. Step 5: Solve for x
    x = 9,495,157.66/3,412.68
  6. Step 6: Final answer
    x = 2,782.32

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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.