Home / 2,710.40-3,740.30-1,531.49

Finding the Fourth Proportional to 2,710.40, 3,740.30 and 1,531.49

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Solution

The fourth proportional to 2,710.40, 3,740.30 and 1,531.49 is: 2,113.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.40 : 3,740.30 = 1,531.49 : x
  2. Step 2: Convert to fraction form
    2,710.40/3,740.30 = 1,531.49/x
  3. Step 3: Cross multiply
    2,710.40x = 3,740.30 × 1,531.49
  4. Step 4: Simplify right side
    2,710.40x = 5,728,205.69
  5. Step 5: Solve for x
    x = 5,728,205.69/2,710.40
  6. Step 6: Final answer
    x = 2,113.42

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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.