Home / 4,289.40-6,431.02-1,948.23

Finding the Fourth Proportional to 4,289.40, 6,431.02 and 1,948.23

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Solution

The fourth proportional to 4,289.40, 6,431.02 and 1,948.23 is: 2,920.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,289.40 : 6,431.02 = 1,948.23 : x
  2. Step 2: Convert to fraction form
    4,289.40/6,431.02 = 1,948.23/x
  3. Step 3: Cross multiply
    4,289.40x = 6,431.02 × 1,948.23
  4. Step 4: Simplify right side
    4,289.40x = 12,529,106.09
  5. Step 5: Solve for x
    x = 12,529,106.09/4,289.40
  6. Step 6: Final answer
    x = 2,920.95

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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.