Home / 4,853.63-7,280.51-1,390.88

Finding the Fourth Proportional to 4,853.63, 7,280.51 and 1,390.88

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Solution

The fourth proportional to 4,853.63, 7,280.51 and 1,390.88 is: 2,086.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.63 : 7,280.51 = 1,390.88 : x
  2. Step 2: Convert to fraction form
    4,853.63/7,280.51 = 1,390.88/x
  3. Step 3: Cross multiply
    4,853.63x = 7,280.51 × 1,390.88
  4. Step 4: Simplify right side
    4,853.63x = 10,126,272.39
  5. Step 5: Solve for x
    x = 10,126,272.39/4,853.63
  6. Step 6: Final answer
    x = 2,086.33

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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.