Home / 7,085.59-9,778.48-4,101.55

Finding the Fourth Proportional to 7,085.59, 9,778.48 and 4,101.55

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Solution

The fourth proportional to 7,085.59, 9,778.48 and 4,101.55 is: 5,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.59 : 9,778.48 = 4,101.55 : x
  2. Step 2: Convert to fraction form
    7,085.59/9,778.48 = 4,101.55/x
  3. Step 3: Cross multiply
    7,085.59x = 9,778.48 × 4,101.55
  4. Step 4: Simplify right side
    7,085.59x = 40,106,924.64
  5. Step 5: Solve for x
    x = 40,106,924.64/7,085.59
  6. Step 6: Final answer
    x = 5,660.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.