Home / 1,036.33-1,428.51-704.18

Finding the Fourth Proportional to 1,036.33, 1,428.51 and 704.18

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Solution

The fourth proportional to 1,036.33, 1,428.51 and 704.18 is: 970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.33 : 1,428.51 = 704.18 : x
  2. Step 2: Convert to fraction form
    1,036.33/1,428.51 = 704.18/x
  3. Step 3: Cross multiply
    1,036.33x = 1,428.51 × 704.18
  4. Step 4: Simplify right side
    1,036.33x = 1,005,924.37
  5. Step 5: Solve for x
    x = 1,005,924.37/1,036.33
  6. Step 6: Final answer
    x = 970.66

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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.