Home / 2,312,440.92-3,189,048.12-1,985,642.78

Finding the Fourth Proportional to 2,312,440.92, 3,189,048.12 and 1,985,642.78

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Solution

The fourth proportional to 2,312,440.92, 3,189,048.12 and 1,985,642.78 is: 2,738,366.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312,440.92 : 3,189,048.12 = 1,985,642.78 : x
  2. Step 2: Convert to fraction form
    2,312,440.92/3,189,048.12 = 1,985,642.78/x
  3. Step 3: Cross multiply
    2,312,440.92x = 3,189,048.12 × 1,985,642.78
  4. Step 4: Simplify right side
    2,312,440.92x = 6,332,310,358,605.33
  5. Step 5: Solve for x
    x = 6,332,310,358,605.33/2,312,440.92
  6. Step 6: Final answer
    x = 2,738,366.33

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Double scale
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1.5x scale

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.