Home / 1,429.74-1,972.98-1,036.08

Finding the Fourth Proportional to 1,429.74, 1,972.98 and 1,036.08

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Solution

The fourth proportional to 1,429.74, 1,972.98 and 1,036.08 is: 1,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429.74 : 1,972.98 = 1,036.08 : x
  2. Step 2: Convert to fraction form
    1,429.74/1,972.98 = 1,036.08/x
  3. Step 3: Cross multiply
    1,429.74x = 1,972.98 × 1,036.08
  4. Step 4: Simplify right side
    1,429.74x = 2,044,165.12
  5. Step 5: Solve for x
    x = 2,044,165.12/1,429.74
  6. Step 6: Final answer
    x = 1,429.75

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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.