Home / 2,710.50-3,740.40-1,515.48

Finding the Fourth Proportional to 2,710.50, 3,740.40 and 1,515.48

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Solution

The fourth proportional to 2,710.50, 3,740.40 and 1,515.48 is: 2,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,710.50 : 3,740.40 = 1,515.48 : x
  2. Step 2: Convert to fraction form
    2,710.50/3,740.40 = 1,515.48/x
  3. Step 3: Cross multiply
    2,710.50x = 3,740.40 × 1,515.48
  4. Step 4: Simplify right side
    2,710.50x = 5,668,501.39
  5. Step 5: Solve for x
    x = 5,668,501.39/2,710.50
  6. Step 6: Final answer
    x = 2,091.32

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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.