Home / 2,475.42-3,416.13-1,427.55

Finding the Fourth Proportional to 2,475.42, 3,416.13 and 1,427.55

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Solution

The fourth proportional to 2,475.42, 3,416.13 and 1,427.55 is: 1,970.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,475.42 : 3,416.13 = 1,427.55 : x
  2. Step 2: Convert to fraction form
    2,475.42/3,416.13 = 1,427.55/x
  3. Step 3: Cross multiply
    2,475.42x = 3,416.13 × 1,427.55
  4. Step 4: Simplify right side
    2,475.42x = 4,876,696.38
  5. Step 5: Solve for x
    x = 4,876,696.38/2,475.42
  6. Step 6: Final answer
    x = 1,970.05

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Half 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.