Home / 1,740.40-2,401.80-1,077.58

Finding the Fourth Proportional to 1,740.40, 2,401.80 and 1,077.58

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Solution

The fourth proportional to 1,740.40, 2,401.80 and 1,077.58 is: 1,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.40 : 2,401.80 = 1,077.58 : x
  2. Step 2: Convert to fraction form
    1,740.40/2,401.80 = 1,077.58/x
  3. Step 3: Cross multiply
    1,740.40x = 2,401.80 × 1,077.58
  4. Step 4: Simplify right side
    1,740.40x = 2,588,131.64
  5. Step 5: Solve for x
    x = 2,588,131.64/1,740.40
  6. Step 6: Final answer
    x = 1,487.09

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.