Home / 6,419.84-8,859.30-3,587.26

Finding the Fourth Proportional to 6,419.84, 8,859.30 and 3,587.26

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Solution

The fourth proportional to 6,419.84, 8,859.30 and 3,587.26 is: 4,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.84 : 8,859.30 = 3,587.26 : x
  2. Step 2: Convert to fraction form
    6,419.84/8,859.30 = 3,587.26/x
  3. Step 3: Cross multiply
    6,419.84x = 8,859.30 × 3,587.26
  4. Step 4: Simplify right side
    6,419.84x = 31,780,612.52
  5. Step 5: Solve for x
    x = 31,780,612.52/6,419.84
  6. Step 6: Final answer
    x = 4,950.37

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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.