Home / 6,378.21-8,802.18-3,545.57

Finding the Fourth Proportional to 6,378.21, 8,802.18 and 3,545.57

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Solution

The fourth proportional to 6,378.21, 8,802.18 and 3,545.57 is: 4,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.21 : 8,802.18 = 3,545.57 : x
  2. Step 2: Convert to fraction form
    6,378.21/8,802.18 = 3,545.57/x
  3. Step 3: Cross multiply
    6,378.21x = 8,802.18 × 3,545.57
  4. Step 4: Simplify right side
    6,378.21x = 31,208,701.33
  5. Step 5: Solve for x
    x = 31,208,701.33/6,378.21
  6. Step 6: Final answer
    x = 4,893.02

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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.