Home / 1,740.50-2,607.87-1,278.46

Finding the Fourth Proportional to 1,740.50, 2,607.87 and 1,278.46

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Solution

The fourth proportional to 1,740.50, 2,607.87 and 1,278.46 is: 1,915.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,740.50 : 2,607.87 = 1,278.46 : x
  2. Step 2: Convert to fraction form
    1,740.50/2,607.87 = 1,278.46/x
  3. Step 3: Cross multiply
    1,740.50x = 2,607.87 × 1,278.46
  4. Step 4: Simplify right side
    1,740.50x = 3,334,065.53
  5. Step 5: Solve for x
    x = 3,334,065.53/1,740.50
  6. Step 6: Final answer
    x = 1,915.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.