Home / 4,729.64-7,088.70-4,143.20

Finding the Fourth Proportional to 4,729.64, 7,088.70 and 4,143.20

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Solution

The fourth proportional to 4,729.64, 7,088.70 and 4,143.20 is: 6,209.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,729.64 : 7,088.70 = 4,143.20 : x
  2. Step 2: Convert to fraction form
    4,729.64/7,088.70 = 4,143.20/x
  3. Step 3: Cross multiply
    4,729.64x = 7,088.70 × 4,143.20
  4. Step 4: Simplify right side
    4,729.64x = 29,369,901.84
  5. Step 5: Solve for x
    x = 29,369,901.84/4,729.64
  6. Step 6: Final answer
    x = 6,209.75

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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.