Home / 7,900.47-10,904.37-4,917.51

Finding the Fourth Proportional to 7,900.47, 10,904.37 and 4,917.51

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Solution

The fourth proportional to 7,900.47, 10,904.37 and 4,917.51 is: 6,787.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.47 : 10,904.37 = 4,917.51 : x
  2. Step 2: Convert to fraction form
    7,900.47/10,904.37 = 4,917.51/x
  3. Step 3: Cross multiply
    7,900.47x = 10,904.37 × 4,917.51
  4. Step 4: Simplify right side
    7,900.47x = 53,622,348.52
  5. Step 5: Solve for x
    x = 53,622,348.52/7,900.47
  6. Step 6: Final answer
    x = 6,787.24

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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.