Home / 2,930.46-4,045.80-1,937.40

Finding the Fourth Proportional to 2,930.46, 4,045.80 and 1,937.40

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Solution

The fourth proportional to 2,930.46, 4,045.80 and 1,937.40 is: 2,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.46 : 4,045.80 = 1,937.40 : x
  2. Step 2: Convert to fraction form
    2,930.46/4,045.80 = 1,937.40/x
  3. Step 3: Cross multiply
    2,930.46x = 4,045.80 × 1,937.40
  4. Step 4: Simplify right side
    2,930.46x = 7,838,332.92
  5. Step 5: Solve for x
    x = 7,838,332.92/2,930.46
  6. Step 6: Final answer
    x = 2,674.78

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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.