Home / 3,038.20-4,557.95-958.80

Finding the Fourth Proportional to 3,038.20, 4,557.95 and 958.80

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Solution

The fourth proportional to 3,038.20, 4,557.95 and 958.80 is: 1,438.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.20 : 4,557.95 = 958.80 : x
  2. Step 2: Convert to fraction form
    3,038.20/4,557.95 = 958.80/x
  3. Step 3: Cross multiply
    3,038.20x = 4,557.95 × 958.80
  4. Step 4: Simplify right side
    3,038.20x = 4,370,175.66
  5. Step 5: Solve for x
    x = 4,370,175.66/3,038.20
  6. Step 6: Final answer
    x = 1,438.41

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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.