Home / 1,451.60-2,165.86-1,259.60

Finding the Fourth Proportional to 1,451.60, 2,165.86 and 1,259.60

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Solution

The fourth proportional to 1,451.60, 2,165.86 and 1,259.60 is: 1,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.60 : 2,165.86 = 1,259.60 : x
  2. Step 2: Convert to fraction form
    1,451.60/2,165.86 = 1,259.60/x
  3. Step 3: Cross multiply
    1,451.60x = 2,165.86 × 1,259.60
  4. Step 4: Simplify right side
    1,451.60x = 2,728,117.26
  5. Step 5: Solve for x
    x = 2,728,117.26/1,451.60
  6. Step 6: Final answer
    x = 1,879.39

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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.