Home / 4,853.41-7,280.11-1,390.66

Finding the Fourth Proportional to 4,853.41, 7,280.11 and 1,390.66

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Solution

The fourth proportional to 4,853.41, 7,280.11 and 1,390.66 is: 2,085.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.41 : 7,280.11 = 1,390.66 : x
  2. Step 2: Convert to fraction form
    4,853.41/7,280.11 = 1,390.66/x
  3. Step 3: Cross multiply
    4,853.41x = 7,280.11 × 1,390.66
  4. Step 4: Simplify right side
    4,853.41x = 10,124,157.77
  5. Step 5: Solve for x
    x = 10,124,157.77/4,853.41
  6. Step 6: Final answer
    x = 2,085.99

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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.