Home / 2,918.76-4,028.40-1,740.48

Finding the Fourth Proportional to 2,918.76, 4,028.40 and 1,740.48

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Solution

The fourth proportional to 2,918.76, 4,028.40 and 1,740.48 is: 2,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.76 : 4,028.40 = 1,740.48 : x
  2. Step 2: Convert to fraction form
    2,918.76/4,028.40 = 1,740.48/x
  3. Step 3: Cross multiply
    2,918.76x = 4,028.40 × 1,740.48
  4. Step 4: Simplify right side
    2,918.76x = 7,011,349.63
  5. Step 5: Solve for x
    x = 7,011,349.63/2,918.76
  6. Step 6: Final answer
    x = 2,402.17

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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.