Home / 5,112.68-7,056.04-3,124.40

Finding the Fourth Proportional to 5,112.68, 7,056.04 and 3,124.40

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Solution

The fourth proportional to 5,112.68, 7,056.04 and 3,124.40 is: 4,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.68 : 7,056.04 = 3,124.40 : x
  2. Step 2: Convert to fraction form
    5,112.68/7,056.04 = 3,124.40/x
  3. Step 3: Cross multiply
    5,112.68x = 7,056.04 × 3,124.40
  4. Step 4: Simplify right side
    5,112.68x = 22,045,891.38
  5. Step 5: Solve for x
    x = 22,045,891.38/5,112.68
  6. Step 6: Final answer
    x = 4,312.00

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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.