Home / 2,897.20-4,345.76-705.94

Finding the Fourth Proportional to 2,897.20, 4,345.76 and 705.94

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Solution

The fourth proportional to 2,897.20, 4,345.76 and 705.94 is: 1,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.20 : 4,345.76 = 705.94 : x
  2. Step 2: Convert to fraction form
    2,897.20/4,345.76 = 705.94/x
  3. Step 3: Cross multiply
    2,897.20x = 4,345.76 × 705.94
  4. Step 4: Simplify right side
    2,897.20x = 3,067,845.81
  5. Step 5: Solve for x
    x = 3,067,845.81/2,897.20
  6. Step 6: Final answer
    x = 1,058.90

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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.