Home / 1,347.04-1,857.96-823.36

Finding the Fourth Proportional to 1,347.04, 1,857.96 and 823.36

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Solution

The fourth proportional to 1,347.04, 1,857.96 and 823.36 is: 1,135.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.04 : 1,857.96 = 823.36 : x
  2. Step 2: Convert to fraction form
    1,347.04/1,857.96 = 823.36/x
  3. Step 3: Cross multiply
    1,347.04x = 1,857.96 × 823.36
  4. Step 4: Simplify right side
    1,347.04x = 1,529,769.95
  5. Step 5: Solve for x
    x = 1,529,769.95/1,347.04
  6. Step 6: Final answer
    x = 1,135.65

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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.