Home / 5,280.81-7,288.33-3,012.15

Finding the Fourth Proportional to 5,280.81, 7,288.33 and 3,012.15

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Solution

The fourth proportional to 5,280.81, 7,288.33 and 3,012.15 is: 4,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.81 : 7,288.33 = 3,012.15 : x
  2. Step 2: Convert to fraction form
    5,280.81/7,288.33 = 3,012.15/x
  3. Step 3: Cross multiply
    5,280.81x = 7,288.33 × 3,012.15
  4. Step 4: Simplify right side
    5,280.81x = 21,953,543.21
  5. Step 5: Solve for x
    x = 21,953,543.21/5,280.81
  6. Step 6: Final answer
    x = 4,157.23

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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.