Home / 1,929.40-2,888.62-1,535.74

Finding the Fourth Proportional to 1,929.40, 2,888.62 and 1,535.74

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Solution

The fourth proportional to 1,929.40, 2,888.62 and 1,535.74 is: 2,299.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.40 : 2,888.62 = 1,535.74 : x
  2. Step 2: Convert to fraction form
    1,929.40/2,888.62 = 1,535.74/x
  3. Step 3: Cross multiply
    1,929.40x = 2,888.62 × 1,535.74
  4. Step 4: Simplify right side
    1,929.40x = 4,436,169.28
  5. Step 5: Solve for x
    x = 4,436,169.28/1,929.40
  6. Step 6: Final answer
    x = 2,299.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.