Home / 1,929.41-2,880.15-1,695.87

Finding the Fourth Proportional to 1,929.41, 2,880.15 and 1,695.87

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Solution

The fourth proportional to 1,929.41, 2,880.15 and 1,695.87 is: 2,531.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.41 : 2,880.15 = 1,695.87 : x
  2. Step 2: Convert to fraction form
    1,929.41/2,880.15 = 1,695.87/x
  3. Step 3: Cross multiply
    1,929.41x = 2,880.15 × 1,695.87
  4. Step 4: Simplify right side
    1,929.41x = 4,884,353.62
  5. Step 5: Solve for x
    x = 4,884,353.62/1,929.41
  6. Step 6: Final answer
    x = 2,531.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.