Home / 7,900.47-11,852.82-2,970.18

Finding the Fourth Proportional to 7,900.47, 11,852.82 and 2,970.18

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Solution

The fourth proportional to 7,900.47, 11,852.82 and 2,970.18 is: 4,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.47 : 11,852.82 = 2,970.18 : x
  2. Step 2: Convert to fraction form
    7,900.47/11,852.82 = 2,970.18/x
  3. Step 3: Cross multiply
    7,900.47x = 11,852.82 × 2,970.18
  4. Step 4: Simplify right side
    7,900.47x = 35,205,008.91
  5. Step 5: Solve for x
    x = 35,205,008.91/7,900.47
  6. Step 6: Final answer
    x = 4,456.07

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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.