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Finding the Fourth Proportional to 2,710.34, 3,740.25 and 1,531.64

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Solution

The fourth proportional to 2,710.34, 3,740.25 and 1,531.64 is: 2,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.34 : 3,740.25 = 1,531.64 : x
  2. Step 2: Convert to fraction form
    2,710.34/3,740.25 = 1,531.64/x
  3. Step 3: Cross multiply
    2,710.34x = 3,740.25 × 1,531.64
  4. Step 4: Simplify right side
    2,710.34x = 5,728,716.51
  5. Step 5: Solve for x
    x = 5,728,716.51/2,710.34
  6. Step 6: Final answer
    x = 2,113.65

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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.