Home / 3,410.16-4,705.56-1,917.72

Finding the Fourth Proportional to 3,410.16, 4,705.56 and 1,917.72

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Solution

The fourth proportional to 3,410.16, 4,705.56 and 1,917.72 is: 2,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,410.16 : 4,705.56 = 1,917.72 : x
  2. Step 2: Convert to fraction form
    3,410.16/4,705.56 = 1,917.72/x
  3. Step 3: Cross multiply
    3,410.16x = 4,705.56 × 1,917.72
  4. Step 4: Simplify right side
    3,410.16x = 9,023,946.52
  5. Step 5: Solve for x
    x = 9,023,946.52/3,410.16
  6. Step 6: Final answer
    x = 2,646.19

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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.