Home / 5,280.80-7,287.40-2,923.04

Finding the Fourth Proportional to 5,280.80, 7,287.40 and 2,923.04

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Solution

The fourth proportional to 5,280.80, 7,287.40 and 2,923.04 is: 4,033.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.80 : 7,287.40 = 2,923.04 : x
  2. Step 2: Convert to fraction form
    5,280.80/7,287.40 = 2,923.04/x
  3. Step 3: Cross multiply
    5,280.80x = 7,287.40 × 2,923.04
  4. Step 4: Simplify right side
    5,280.80x = 21,301,361.70
  5. Step 5: Solve for x
    x = 21,301,361.70/5,280.80
  6. Step 6: Final answer
    x = 4,033.74

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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.