Home / 1,929.34-2,897.43-1,435.90

Finding the Fourth Proportional to 1,929.34, 2,897.43 and 1,435.90

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Solution

The fourth proportional to 1,929.34, 2,897.43 and 1,435.90 is: 2,156.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929.34 : 2,897.43 = 1,435.90 : x
  2. Step 2: Convert to fraction form
    1,929.34/2,897.43 = 1,435.90/x
  3. Step 3: Cross multiply
    1,929.34x = 2,897.43 × 1,435.90
  4. Step 4: Simplify right side
    1,929.34x = 4,160,430.79
  5. Step 5: Solve for x
    x = 4,160,430.79/1,929.34
  6. Step 6: Final answer
    x = 2,156.40

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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.