Home / 6,419.79-8,859.38-3,548.57

Finding the Fourth Proportional to 6,419.79, 8,859.38 and 3,548.57

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Solution

The fourth proportional to 6,419.79, 8,859.38 and 3,548.57 is: 4,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.79 : 8,859.38 = 3,548.57 : x
  2. Step 2: Convert to fraction form
    6,419.79/8,859.38 = 3,548.57/x
  3. Step 3: Cross multiply
    6,419.79x = 8,859.38 × 3,548.57
  4. Step 4: Simplify right side
    6,419.79x = 31,438,068.05
  5. Step 5: Solve for x
    x = 31,438,068.05/6,419.79
  6. Step 6: Final answer
    x = 4,897.06

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1.5x scale

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.