Home / 1,279.04-1,917.48-585.46

Finding the Fourth Proportional to 1,279.04, 1,917.48 and 585.46

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Solution

The fourth proportional to 1,279.04, 1,917.48 and 585.46 is: 877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279.04 : 1,917.48 = 585.46 : x
  2. Step 2: Convert to fraction form
    1,279.04/1,917.48 = 585.46/x
  3. Step 3: Cross multiply
    1,279.04x = 1,917.48 × 585.46
  4. Step 4: Simplify right side
    1,279.04x = 1,122,607.84
  5. Step 5: Solve for x
    x = 1,122,607.84/1,279.04
  6. Step 6: Final answer
    x = 877.70

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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.