Home / 4,988.64-7,482.96-4,121.13

Finding the Fourth Proportional to 4,988.64, 7,482.96 and 4,121.13

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Solution

The fourth proportional to 4,988.64, 7,482.96 and 4,121.13 is: 6,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,988.64 : 7,482.96 = 4,121.13 : x
  2. Step 2: Convert to fraction form
    4,988.64/7,482.96 = 4,121.13/x
  3. Step 3: Cross multiply
    4,988.64x = 7,482.96 × 4,121.13
  4. Step 4: Simplify right side
    4,988.64x = 30,838,250.94
  5. Step 5: Solve for x
    x = 30,838,250.94/4,988.64
  6. Step 6: Final answer
    x = 6,181.70

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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.