Home / 3,130.86-4,315.99-2,383.52

Finding the Fourth Proportional to 3,130.86, 4,315.99 and 2,383.52

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Solution

The fourth proportional to 3,130.86, 4,315.99 and 2,383.52 is: 3,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.86 : 4,315.99 = 2,383.52 : x
  2. Step 2: Convert to fraction form
    3,130.86/4,315.99 = 2,383.52/x
  3. Step 3: Cross multiply
    3,130.86x = 4,315.99 × 2,383.52
  4. Step 4: Simplify right side
    3,130.86x = 10,287,248.48
  5. Step 5: Solve for x
    x = 10,287,248.48/3,130.86
  6. Step 6: Final answer
    x = 3,285.76

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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.