Home / 6,937.80-10,400.40-2,554.20

Finding the Fourth Proportional to 6,937.80, 10,400.40 and 2,554.20

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Solution

The fourth proportional to 6,937.80, 10,400.40 and 2,554.20 is: 3,828.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,937.80 : 10,400.40 = 2,554.20 : x
  2. Step 2: Convert to fraction form
    6,937.80/10,400.40 = 2,554.20/x
  3. Step 3: Cross multiply
    6,937.80x = 10,400.40 × 2,554.20
  4. Step 4: Simplify right side
    6,937.80x = 26,564,701.68
  5. Step 5: Solve for x
    x = 26,564,701.68/6,937.80
  6. Step 6: Final answer
    x = 3,828.98

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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.