Home / 5,433.78-8,085.76-5,415.35

Finding the Fourth Proportional to 5,433.78, 8,085.76 and 5,415.35

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Solution

The fourth proportional to 5,433.78, 8,085.76 and 5,415.35 is: 8,058.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,433.78 : 8,085.76 = 5,415.35 : x
  2. Step 2: Convert to fraction form
    5,433.78/8,085.76 = 5,415.35/x
  3. Step 3: Cross multiply
    5,433.78x = 8,085.76 × 5,415.35
  4. Step 4: Simplify right side
    5,433.78x = 43,787,220.42
  5. Step 5: Solve for x
    x = 43,787,220.42/5,433.78
  6. Step 6: Final answer
    x = 8,058.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.