Home / 4,122.59-6,185.95-1,931.49

Finding the Fourth Proportional to 4,122.59, 6,185.95 and 1,931.49

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Solution

The fourth proportional to 4,122.59, 6,185.95 and 1,931.49 is: 2,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,122.59 : 6,185.95 = 1,931.49 : x
  2. Step 2: Convert to fraction form
    4,122.59/6,185.95 = 1,931.49/x
  3. Step 3: Cross multiply
    4,122.59x = 6,185.95 × 1,931.49
  4. Step 4: Simplify right side
    4,122.59x = 11,948,095.74
  5. Step 5: Solve for x
    x = 11,948,095.74/4,122.59
  6. Step 6: Final answer
    x = 2,898.20

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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.