Home / 7,064.40-9,748.99-3,878.00

Finding the Fourth Proportional to 7,064.40, 9,748.99 and 3,878.00

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Solution

The fourth proportional to 7,064.40, 9,748.99 and 3,878.00 is: 5,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,064.40 : 9,748.99 = 3,878.00 : x
  2. Step 2: Convert to fraction form
    7,064.40/9,748.99 = 3,878.00/x
  3. Step 3: Cross multiply
    7,064.40x = 9,748.99 × 3,878.00
  4. Step 4: Simplify right side
    7,064.40x = 37,806,534.48
  5. Step 5: Solve for x
    x = 37,806,534.48/7,064.40
  6. Step 6: Final answer
    x = 5,351.70

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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.