Home / 1,664.21-2,485.77-1,295.15

Finding the Fourth Proportional to 1,664.21, 2,485.77 and 1,295.15

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Solution

The fourth proportional to 1,664.21, 2,485.77 and 1,295.15 is: 1,934.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.21 : 2,485.77 = 1,295.15 : x
  2. Step 2: Convert to fraction form
    1,664.21/2,485.77 = 1,295.15/x
  3. Step 3: Cross multiply
    1,664.21x = 2,485.77 × 1,295.15
  4. Step 4: Simplify right side
    1,664.21x = 3,219,445.02
  5. Step 5: Solve for x
    x = 3,219,445.02/1,664.21
  6. Step 6: Final answer
    x = 1,934.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.