Home / 2,007.81-2,771.87-1,345.77

Finding the Fourth Proportional to 2,007.81, 2,771.87 and 1,345.77

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Solution

The fourth proportional to 2,007.81, 2,771.87 and 1,345.77 is: 1,857.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.81 : 2,771.87 = 1,345.77 : x
  2. Step 2: Convert to fraction form
    2,007.81/2,771.87 = 1,345.77/x
  3. Step 3: Cross multiply
    2,007.81x = 2,771.87 × 1,345.77
  4. Step 4: Simplify right side
    2,007.81x = 3,730,292.76
  5. Step 5: Solve for x
    x = 3,730,292.76/2,007.81
  6. Step 6: Final answer
    x = 1,857.89

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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.