Home / 1,429.25-1,972.95-1,036.19

Finding the Fourth Proportional to 1,429.25, 1,972.95 and 1,036.19

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Solution

The fourth proportional to 1,429.25, 1,972.95 and 1,036.19 is: 1,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.25 : 1,972.95 = 1,036.19 : x
  2. Step 2: Convert to fraction form
    1,429.25/1,972.95 = 1,036.19/x
  3. Step 3: Cross multiply
    1,429.25x = 1,972.95 × 1,036.19
  4. Step 4: Simplify right side
    1,429.25x = 2,044,351.06
  5. Step 5: Solve for x
    x = 2,044,351.06/1,429.25
  6. Step 6: Final answer
    x = 1,430.37

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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.