Home / 5,449.36-7,510.98-4,172.80

Finding the Fourth Proportional to 5,449.36, 7,510.98 and 4,172.80

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Solution

The fourth proportional to 5,449.36, 7,510.98 and 4,172.80 is: 5,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.36 : 7,510.98 = 4,172.80 : x
  2. Step 2: Convert to fraction form
    5,449.36/7,510.98 = 4,172.80/x
  3. Step 3: Cross multiply
    5,449.36x = 7,510.98 × 4,172.80
  4. Step 4: Simplify right side
    5,449.36x = 31,341,817.34
  5. Step 5: Solve for x
    x = 31,341,817.34/5,449.36
  6. Step 6: Final answer
    x = 5,751.47

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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.