Home / 2,903.25-4,355.12-929.15

Finding the Fourth Proportional to 2,903.25, 4,355.12 and 929.15

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Solution

The fourth proportional to 2,903.25, 4,355.12 and 929.15 is: 1,393.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,903.25 : 4,355.12 = 929.15 : x
  2. Step 2: Convert to fraction form
    2,903.25/4,355.12 = 929.15/x
  3. Step 3: Cross multiply
    2,903.25x = 4,355.12 × 929.15
  4. Step 4: Simplify right side
    2,903.25x = 4,046,556.63
  5. Step 5: Solve for x
    x = 4,046,556.63/2,903.25
  6. Step 6: Final answer
    x = 1,393.80

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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.