Home / 7,287.24-10,056.40-4,143.64

Finding the Fourth Proportional to 7,287.24, 10,056.40 and 4,143.64

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Solution

The fourth proportional to 7,287.24, 10,056.40 and 4,143.64 is: 5,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.24 : 10,056.40 = 4,143.64 : x
  2. Step 2: Convert to fraction form
    7,287.24/10,056.40 = 4,143.64/x
  3. Step 3: Cross multiply
    7,287.24x = 10,056.40 × 4,143.64
  4. Step 4: Simplify right side
    7,287.24x = 41,670,101.30
  5. Step 5: Solve for x
    x = 41,670,101.30/7,287.24
  6. Step 6: Final answer
    x = 5,718.23

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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.