Home / 1,362.51-2,053.68-1,239.48

Finding the Fourth Proportional to 1,362.51, 2,053.68 and 1,239.48

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Solution

The fourth proportional to 1,362.51, 2,053.68 and 1,239.48 is: 1,868.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.51 : 2,053.68 = 1,239.48 : x
  2. Step 2: Convert to fraction form
    1,362.51/2,053.68 = 1,239.48/x
  3. Step 3: Cross multiply
    1,362.51x = 2,053.68 × 1,239.48
  4. Step 4: Simplify right side
    1,362.51x = 2,545,495.29
  5. Step 5: Solve for x
    x = 2,545,495.29/1,362.51
  6. Step 6: Final answer
    x = 1,868.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.