Home / 2,917.85-4,026.28-1,658.45

Finding the Fourth Proportional to 2,917.85, 4,026.28 and 1,658.45

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Solution

The fourth proportional to 2,917.85, 4,026.28 and 1,658.45 is: 2,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.85 : 4,026.28 = 1,658.45 : x
  2. Step 2: Convert to fraction form
    2,917.85/4,026.28 = 1,658.45/x
  3. Step 3: Cross multiply
    2,917.85x = 4,026.28 × 1,658.45
  4. Step 4: Simplify right side
    2,917.85x = 6,677,384.07
  5. Step 5: Solve for x
    x = 6,677,384.07/2,917.85
  6. Step 6: Final answer
    x = 2,288.46

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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.