Home / 1,685.10-2,523.60-1,612.20

Finding the Fourth Proportional to 1,685.10, 2,523.60 and 1,612.20

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Solution

The fourth proportional to 1,685.10, 2,523.60 and 1,612.20 is: 2,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.10 : 2,523.60 = 1,612.20 : x
  2. Step 2: Convert to fraction form
    1,685.10/2,523.60 = 1,612.20/x
  3. Step 3: Cross multiply
    1,685.10x = 2,523.60 × 1,612.20
  4. Step 4: Simplify right side
    1,685.10x = 4,068,547.92
  5. Step 5: Solve for x
    x = 4,068,547.92/1,685.10
  6. Step 6: Final answer
    x = 2,414.43

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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.