Home / 7,220.48-10,815.54-4,586.66

Finding the Fourth Proportional to 7,220.48, 10,815.54 and 4,586.66

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Solution

The fourth proportional to 7,220.48, 10,815.54 and 4,586.66 is: 6,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.48 : 10,815.54 = 4,586.66 : x
  2. Step 2: Convert to fraction form
    7,220.48/10,815.54 = 4,586.66/x
  3. Step 3: Cross multiply
    7,220.48x = 10,815.54 × 4,586.66
  4. Step 4: Simplify right side
    7,220.48x = 49,607,204.70
  5. Step 5: Solve for x
    x = 49,607,204.70/7,220.48
  6. Step 6: Final answer
    x = 6,870.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.