Home / 7,901.43-11,851.57-2,970.69

Finding the Fourth Proportional to 7,901.43, 11,851.57 and 2,970.69

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Solution

The fourth proportional to 7,901.43, 11,851.57 and 2,970.69 is: 4,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.43 : 11,851.57 = 2,970.69 : x
  2. Step 2: Convert to fraction form
    7,901.43/11,851.57 = 2,970.69/x
  3. Step 3: Cross multiply
    7,901.43x = 11,851.57 × 2,970.69
  4. Step 4: Simplify right side
    7,901.43x = 35,207,340.48
  5. Step 5: Solve for x
    x = 35,207,340.48/7,901.43
  6. Step 6: Final answer
    x = 4,455.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.