Home / 1,917.04-2,646.72-1,520.32

Finding the Fourth Proportional to 1,917.04, 2,646.72 and 1,520.32

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Solution

The fourth proportional to 1,917.04, 2,646.72 and 1,520.32 is: 2,099.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.04 : 2,646.72 = 1,520.32 : x
  2. Step 2: Convert to fraction form
    1,917.04/2,646.72 = 1,520.32/x
  3. Step 3: Cross multiply
    1,917.04x = 2,646.72 × 1,520.32
  4. Step 4: Simplify right side
    1,917.04x = 4,023,861.35
  5. Step 5: Solve for x
    x = 4,023,861.35/1,917.04
  6. Step 6: Final answer
    x = 2,099.00

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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.