Home / 1,112.12-1,534.70-607.96

Finding the Fourth Proportional to 1,112.12, 1,534.70 and 607.96

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Solution

The fourth proportional to 1,112.12, 1,534.70 and 607.96 is: 838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112.12 : 1,534.70 = 607.96 : x
  2. Step 2: Convert to fraction form
    1,112.12/1,534.70 = 607.96/x
  3. Step 3: Cross multiply
    1,112.12x = 1,534.70 × 607.96
  4. Step 4: Simplify right side
    1,112.12x = 933,039.65
  5. Step 5: Solve for x
    x = 933,039.65/1,112.12
  6. Step 6: Final answer
    x = 838.97

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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.