Home / 1,709.49-2,359.80-1,112.16

Finding the Fourth Proportional to 1,709.49, 2,359.80 and 1,112.16

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Solution

The fourth proportional to 1,709.49, 2,359.80 and 1,112.16 is: 1,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.49 : 2,359.80 = 1,112.16 : x
  2. Step 2: Convert to fraction form
    1,709.49/2,359.80 = 1,112.16/x
  3. Step 3: Cross multiply
    1,709.49x = 2,359.80 × 1,112.16
  4. Step 4: Simplify right side
    1,709.49x = 2,624,475.17
  5. Step 5: Solve for x
    x = 2,624,475.17/1,709.49
  6. Step 6: Final answer
    x = 1,535.24

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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.