Home / 6,780.16-10,172.40-3,700

Finding the Fourth Proportional to 6,780.16, 10,172.40 and 3,700

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Solution

The fourth proportional to 6,780.16, 10,172.40 and 3,700 is: 5,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.16 : 10,172.40 = 3,700 : x
  2. Step 2: Convert to fraction form
    6,780.16/10,172.40 = 3,700/x
  3. Step 3: Cross multiply
    6,780.16x = 10,172.40 × 3,700
  4. Step 4: Simplify right side
    6,780.16x = 37,637,880
  5. Step 5: Solve for x
    x = 37,637,880/6,780.16
  6. Step 6: Final answer
    x = 5,551.18

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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.