Home / 7,760.51-10,709.45-4,223.71

Finding the Fourth Proportional to 7,760.51, 10,709.45 and 4,223.71

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Solution

The fourth proportional to 7,760.51, 10,709.45 and 4,223.71 is: 5,828.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,760.51 : 10,709.45 = 4,223.71 : x
  2. Step 2: Convert to fraction form
    7,760.51/10,709.45 = 4,223.71/x
  3. Step 3: Cross multiply
    7,760.51x = 10,709.45 × 4,223.71
  4. Step 4: Simplify right side
    7,760.51x = 45,233,619.17
  5. Step 5: Solve for x
    x = 45,233,619.17/7,760.51
  6. Step 6: Final answer
    x = 5,828.69

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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.