Home / 3,445.58-4,755.15-2,119.74

Finding the Fourth Proportional to 3,445.58, 4,755.15 and 2,119.74

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Solution

The fourth proportional to 3,445.58, 4,755.15 and 2,119.74 is: 2,925.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,445.58 : 4,755.15 = 2,119.74 : x
  2. Step 2: Convert to fraction form
    3,445.58/4,755.15 = 2,119.74/x
  3. Step 3: Cross multiply
    3,445.58x = 4,755.15 × 2,119.74
  4. Step 4: Simplify right side
    3,445.58x = 10,079,681.66
  5. Step 5: Solve for x
    x = 10,079,681.66/3,445.58
  6. Step 6: Final answer
    x = 2,925.40

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Half scale
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Double scale
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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.