Home / 5,143.47-7,718.28-4,725.20

Finding the Fourth Proportional to 5,143.47, 7,718.28 and 4,725.20

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Solution

The fourth proportional to 5,143.47, 7,718.28 and 4,725.20 is: 7,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,143.47 : 7,718.28 = 4,725.20 : x
  2. Step 2: Convert to fraction form
    5,143.47/7,718.28 = 4,725.20/x
  3. Step 3: Cross multiply
    5,143.47x = 7,718.28 × 4,725.20
  4. Step 4: Simplify right side
    5,143.47x = 36,470,416.66
  5. Step 5: Solve for x
    x = 36,470,416.66/5,143.47
  6. Step 6: Final answer
    x = 7,090.62

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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.