Home / 2,931.45-4,391.65-1,448.93

Finding the Fourth Proportional to 2,931.45, 4,391.65 and 1,448.93

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Solution

The fourth proportional to 2,931.45, 4,391.65 and 1,448.93 is: 2,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.45 : 4,391.65 = 1,448.93 : x
  2. Step 2: Convert to fraction form
    2,931.45/4,391.65 = 1,448.93/x
  3. Step 3: Cross multiply
    2,931.45x = 4,391.65 × 1,448.93
  4. Step 4: Simplify right side
    2,931.45x = 6,363,193.43
  5. Step 5: Solve for x
    x = 6,363,193.43/2,931.45
  6. Step 6: Final answer
    x = 2,170.66

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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.