Home / 7,905.42-10,908.75-5,810.70

Finding the Fourth Proportional to 7,905.42, 10,908.75 and 5,810.70

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Solution

The fourth proportional to 7,905.42, 10,908.75 and 5,810.70 is: 8,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.42 : 10,908.75 = 5,810.70 : x
  2. Step 2: Convert to fraction form
    7,905.42/10,908.75 = 5,810.70/x
  3. Step 3: Cross multiply
    7,905.42x = 10,908.75 × 5,810.70
  4. Step 4: Simplify right side
    7,905.42x = 63,387,473.63
  5. Step 5: Solve for x
    x = 63,387,473.63/7,905.42
  6. Step 6: Final answer
    x = 8,018.23

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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.