Home / 7,643.36-10,545.28-4,285.60

Finding the Fourth Proportional to 7,643.36, 10,545.28 and 4,285.60

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Solution

The fourth proportional to 7,643.36, 10,545.28 and 4,285.60 is: 5,912.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.36 : 10,545.28 = 4,285.60 : x
  2. Step 2: Convert to fraction form
    7,643.36/10,545.28 = 4,285.60/x
  3. Step 3: Cross multiply
    7,643.36x = 10,545.28 × 4,285.60
  4. Step 4: Simplify right side
    7,643.36x = 45,192,851.97
  5. Step 5: Solve for x
    x = 45,192,851.97/7,643.36
  6. Step 6: Final answer
    x = 5,912.69

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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.