Home / 5,385.71-8,064.78-4,886.34

Finding the Fourth Proportional to 5,385.71, 8,064.78 and 4,886.34

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Solution

The fourth proportional to 5,385.71, 8,064.78 and 4,886.34 is: 7,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,385.71 : 8,064.78 = 4,886.34 : x
  2. Step 2: Convert to fraction form
    5,385.71/8,064.78 = 4,886.34/x
  3. Step 3: Cross multiply
    5,385.71x = 8,064.78 × 4,886.34
  4. Step 4: Simplify right side
    5,385.71x = 39,407,257.11
  5. Step 5: Solve for x
    x = 39,407,257.11/5,385.71
  6. Step 6: Final answer
    x = 7,317.01

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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.