Home / 3,124.46-4,687.59-1,478.74

Finding the Fourth Proportional to 3,124.46, 4,687.59 and 1,478.74

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Solution

The fourth proportional to 3,124.46, 4,687.59 and 1,478.74 is: 2,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.46 : 4,687.59 = 1,478.74 : x
  2. Step 2: Convert to fraction form
    3,124.46/4,687.59 = 1,478.74/x
  3. Step 3: Cross multiply
    3,124.46x = 4,687.59 × 1,478.74
  4. Step 4: Simplify right side
    3,124.46x = 6,931,715.12
  5. Step 5: Solve for x
    x = 6,931,715.12/3,124.46
  6. Step 6: Final answer
    x = 2,218.54

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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.