Home / 4,861.40-7,287.50-1,572.80

Finding the Fourth Proportional to 4,861.40, 7,287.50 and 1,572.80

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Solution

The fourth proportional to 4,861.40, 7,287.50 and 1,572.80 is: 2,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.40 : 7,287.50 = 1,572.80 : x
  2. Step 2: Convert to fraction form
    4,861.40/7,287.50 = 1,572.80/x
  3. Step 3: Cross multiply
    4,861.40x = 7,287.50 × 1,572.80
  4. Step 4: Simplify right side
    4,861.40x = 11,461,780
  5. Step 5: Solve for x
    x = 11,461,780/4,861.40
  6. Step 6: Final answer
    x = 2,357.71

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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.